# List of wars: 1900–1944

This is a list of wars that began between 1900 and 1944.
This period saw the outbreak of World War I (1914–1918) and World War II (1939–1945), which are among the deadliest conflicts in human history, with many of the world's great powers partaking in total war and some partaking in genocides. Depending on the source consulted, conflict deaths reached an all-time peak in either 1941 or 1942 at 2.96–7.71 million, during the height of the latter conflict.
Besides the aforementioned world wars, a number of smaller conflicts also took place. In Africa, conflicts of this era were mostly fought between European colonial forces on one side and native kingdoms and insurgents on the other. There are exceptions (e.g. the Italo-Turkish War, as well as intercolonial invasions of English, German, Italian and Vichy French possessions in the World Wars). Likewise, there were several large native rebellions in Southeast Asia against the European, Japanese and American colonial empires. The intercolonial Pacific War of World War II brought many countries into conflict in that theatre.
Other parts of Afro-Eurasia, as well as the Americas, saw a wide variety of conventional wars, civil wars, ethnic or political conflicts, revolutions, and small rebellions. Prior to 1940, Australia saw only sporadic conflict as the frontier wars entered its final stages. However, in World War II, Australia became the site of Axis naval activity and air raids.

## 1900–1909

1900–1909 :
| Start | Finish | Name of Conflict | Belligerents | Belligerents |
| Start | Finish | Name of Conflict | Victorious party (if applicable) | Defeated party (if applicable) |
| 1900 | 1905 | 1900–1905 phase of the Mat Salleh Rebellion | British Empire North Borneo | Rebels |
| 1900 | 1920 | Somaliland campaign | British Empire Ethiopian Empire Italian Empire | Dervish State |
| 1900 | 1900 | War of the Golden Stool | British Empire | Ashanti Empire |
| 1900 | 1905 | Zande resistance | British Empire Anglo-Egyptian Sudan | Sultan Yam-bio's rebel forces |
| 1900 | 1902 | Muhammad Umar Khan's rebellion | British Empire  State of Makran | Forces loyal to Muhammad Umar Khan |
| 1900 | 1900 | 1900 Hamawand revolt | Ottoman Empire | Hamawand rebels Supported by: Sheikhs of Sulaymaniyah and Qaradāgh |
| 1900 | 1900 | 1900 Sudan revolt | British Empire Anglo-Egyptian Sudan | Sudanese rebels |
| 1900 | 1900 | French conquest of Borno | France | Borno |
| 1900 | 1907 | Unrest in Java | Dutch Empire | Peasant rebels Lone-wolf robbers and arsonists |
| 1900 | 1903 | 1900–1903 uprising in southwest Madagascar | France | Rebels |
| 1900 | 1900 | Shoubak revolt of 1900 | Ottoman Empire | Shoubakis |
| 1900 | 1900 | Sharjah conquest of Ras Al Khaimah | Emirate of Sharjah | Ras Al Khaimah |
| 1900 | 1900 | Russian invasion of Manchuria | Russian Empire | Qing dynasty Yìhéquán |
| 1900 | 1901 | Mahsud Waziri blockade | British Empire  British Raj | Mahsud rebels |
| 1900 | 1901 | Kuwaiti–Rashidi war | Jabal Shammar | Kuwait House of Saud Arab tribes Al-Muntafiq Mutayr Otaibah Al-Dhafeer Ajman tribe Al-Hawajir Al Murrah Bani Khalid Subay' Suhool |
| 1901 | 1901 | Risings among the Agar Dinka | British Empire Anglo-Egyptian Sudan | Agar Dinka rebels |
| 1901 | 1901 | Bastaard uprising of 1901 | German Empire German South West Africa | Bastaards from Grootfontein tribe |
| 1901 | 1907 | Subjugation of Jambi | Dutch Empire | Jambi |
| 1901 | 1901 | French conquest of the Dendi Kingdom | France | Dendi Kingdom |
| 1901 | 1903 | Liberating Revolution (Venezuela) | Venezuela | Liberal revolutionaries |
| 1901 | 1902 | Anglo-Aro War | British Empire | Aro Confederacy |
| 1901 | 1901 | Battle of Holy Apostles Monastery | Armenian fedayi | Ottoman Empire |
| 1901 | 1903 | 1901 Mapondera Rebellion | British Empire | Forces loyal to Kadungure Mapondera |
| 1901 | 1936 | Holy Man's Rebellion | French Indochina Siam | Phu Mi Bun Movement |
| 1902 | 1902 | Kala-i-Mor railway worker's revolt | Russian Empire | Rebel railway workers |
| 1902 | 1902 | Haitian Civil War of 1902 | Haiti | Anténor Firmin's rebels |
| 1902 | 1902 | 1902 Sudan revolt | British Empire Anglo-Egyptian Sudan | Sudanese rebels |
| 1902 | 1902 | Merauke uprising | Dutch Empire | Marind rebels |
| 1902 | 1904 | Kuanhama Rebellion of 1902-1904 | Portuguese Empire | Kuanhama |
| 1902 | 1904 | Bailundo revolt | Portuguese Empire | Ovimbundu Kingdoms Kisanji Luimbi |
| 1902 | 1904 | Ngiao Rebellion | Siam | Shan rebels |
| 1902 | 1903 | Venezuelan crisis of 1902–1903 | German Empire United Kingdom Kingdom of Italy | Venezuela |
| 1902 | 1902 | Kabul Khel expedition | British Empire  British Raj | Kabul Khel rebels |
| 1902 | 1903 | Expeditions against the Bantin (Location: Kalimantan) | Dutch Empire | Bantin |
| 1902 | 1906 | Korintji expeditions (Location: Sumatra) | Dutch Empire | Korintji |
| 1902 | 1907 | Campaigns against Dayak (Location: Kalimantan) | Dutch Empire | Dayak |
| 1902 | 1902 | Italian–Ottoman crisis of 1902 | Kingdom of Italy | Ottoman Empire |
| 1903 | 1903 | Great Ming Uprising | Qing dynasty | Heavenly Kingdom of the Great Mingshun |
| 1903 | 1903 | 1903 Tegale uprising | British Empire Anglo-Egyptian Sudan | Muhammad al-Amin's rebel forces |
| 1903 | 1903 | 1903 uprising in Bukhara | Russian Empire  Emirate of Bukhara | Anti-tax rebels |
| 1903 | 1910 | Risings among the Atwot Dinka | British Empire Anglo-Egyptian Sudan | Atwot Dinka rebels |
| 1903 | 1905 | Rijal al-Ma rebellion | Ottoman Empire | Rijal al-Ma |
| 1903 | 1903 | Kavango uprising | German Empire German South West Africa | Kavango rebels |
| 1903 | 1903 | Actions on Yapen | Dutch Empire | Tribes of Yapen |
| 1903 | 1909 | Resistance in Minangkabau | Dutch Empire | Anti-coffee rebels |
| 1903 | 1910 | Mentawei islands campaign | Dutch Empire | Anti-Dutch forces |
| 1903 | 1916 (Solor) 1940 (Flores) | Military actions in Flores and Solor | Dutch Empire | Anti-Dutch forces |
| 1903 | 1903 | Kerinci Expedition | Dutch Empire | Anti-Dutch forces |
| 1903 | 1903 | Battle of Jo-Laban | Kuwait Emirate of Nejd and Hasa Arab tribes Al-Muntafiq Ajman tribe Al Murrah Subay' Suhool Al-Hawajir Bani Khalid Al-Awazem | Jabal Shammar Mutayr |
| 1903 | 1903 | May Coup (Serbia) | Kingdom of Serbia | House of Obrenović |
| 1903 | 1903 | Ilinden–Preobrazhenie Uprising | Ottoman Empire | IMARO SMAC Kruševo Republic Strandzha Republic |
| 1903 | 1904 | British expedition to Tibet | British Empire | Qing Dynasty Tibet |
| 1903 | 1904 | British conquest of the Sokoto Caliphate | British Empire | Sokoto Caliphate |
| 1903 | 1903 | British conquest of the Kano Emirate | British Empire | Kano Emirate |
| 1903 | 1907 | First Saudi–Rashidi War Part of the Unification of Saudi Arabia | Emirate of Nejd and Hasa | Emirate of Ha'il Ottoman Empire |
| 1903 | 1903 | Uprising of Namas in Maltahöhe | German Empire German South West Africa | Nama rebels |
| 1903 | 1904 | Bondelswarts uprising of 1904 | German Empire German South West Africa | Bondelswarts |
| 1904 | 1904 | Adam Wad Muhammad's uprising | British Empire Anglo-Egyptian Sudan | Adam Wad Muhammad's rebel forces |
| 1904 | 1904 | Mahsud expedition of 1904 | British Empire  British Raj | Mahsud rebels |
| 1904 | 1904 | 1904 Ondonga uprising | German Empire German South West Africa | Ondonga rebels |
| 1904 | 1909 | 1904 Nama uprising | German Empire German South West Africa | Nama rebels |
| 1904 | 1904 | 1904 Sudan revolt | British Empire Anglo-Egyptian Sudan | Sudanese rebels |
| 1904 | 1904 | Campaign in the Gajo and Alas islandsPart of the Aceh War | Dutch Empire | Anti-Dutch forces |
| 1904 | 1904 | Dutch intervention in Bali (1904) | Dutch Empire | Anti-Dutch forces |
| 1904 | 1904 | Resistance on Tidore | Dutch Empire | Tidore |
| 1904 | 1909 | Sulawesi expeditions | Dutch Empire | Anti-Dutch forces |
| 1904 | 1905 | 1904–1905 uprising in Madagascar | France Malagasy Catholics | Rebels Malagasy Protestants |
| 1904 | 1907 | Portuguese campaign against the Ovambo (See Battle of Mufilo) | Portuguese Empire | Ovambo |
| 1904 | 1904 | Vaccine Revolt | First Brazilian Republic | Anti-vaccination rebels |
| 1904 | 1904 | Revolution of 1904 | Uruguayan government | National Party |
| 1904 | 1904 | 1904 Sasun uprising | Ottoman Empire | Armenian fedayees |
| 1904 | 1908 | Herero Wars | German Empire | Herero and Namaqua peoples |
| 1904 | 1905 | Russo-Japanese War | Empire of Japan | Russian Empire |
| 1904 | 1905 | Yemeni Rebellion of 1904 Part of the Yemeni–Ottoman Conflicts | Zaidis | Ottoman Empire |
| 1904 | 1908 | Macedonian Struggle | Hellenic Macedonian Committee | Internal Macedonian Revolutionary Organization |
| 1905 | 1905 | Ping-liu-li Uprising | Qing dynasty | Rebels |
| 1905 | 1906 | Military actions in Onin | Dutch Empire | Anti-Dutch forces |
| 1905 | 1905 | Ottoman incursion into Persia | Ottoman Empire | Sublime State of Persia |
| 1905 | 1911 | Military actions Sumba and Sumbawa | Dutch Empire | Anti-Dutch forces |
| 1905 | 1911 | Persian Constitutional Revolution | The Revolution: June 1905 – August 1906 Secret Center Social Democratic Party Society of Humanity Revolutionary Committee Secret Society Semi-organized groups: Ulama and seminary students Committee of Merchants Committee of Guild Elders Students of Dar ul-Funun, School of Political Science and School of Agriculture Struggle and Civil War: August 1906 – July 1909 Parliament Tabriz Council Society of Azerbaijanis Central Society Dashnak Society of Guilds Society of College Graduates | Qajar Iran Nazmiyeh Cossack Brigade Qajar Iran Cossack Brigade Russian Empire Shahsevans |
| 1905 | 1905 | Argentine Revolution of 1905 | Argentina | Radical Civic Union |
| 1905 | 1905 | Shoubak Revolt of 1905 | Ottoman Empire | Shoubakis |
| 1905 | 1905 | Łódź insurrection | Russian Empire | Polish worker militias |
| 1905 | 1905 | Kurdish rebellion of 1905 | Ottoman Empire | Kurdish rebels |
| 1905 | 1905 | Theriso revolt | Ottoman Empire  Cretan State Supported By:  Russian Empire | Cretan rebels |
| 1905 | 1906 | Batang uprising | Qing Dynasty | Tibetan Buddhists |
| 1905 | 1907 | Russian Revolution of 1905 | Russian Empire | Revolutionaries |
| 1905 | 1907 | Maji Maji Rebellion | German Empire | Indigenous rebels |
| 1905 | 1906 | Yemeni Expedition of 1905 Part of the Yemeni–Ottoman Conflicts | Zaidis | Ottoman Empire |
| 1905 | 1905 | South Sulawesi expeditions of 1905 | The Netherlands | South Sulawesi kingdoms of Bone, Luwu and Wajo |
| 1906 | 1906 | Taba Crisis of 1906 | British Empire | Ottoman Empire |
| 1906 | 1907 | Resistance in Lombok | Dutch Empire | Messianic rebels |
| 1906 | 1908 | Actions against fighters from Jambi in Indragiri (Location: Sumatra) | Dutch Empire | Jambi |
| 1906 | 1906 | Ottoman invasion of Persia (1906) | Ottoman Empire | Sublime State of Persia |
| 1906 | 1906 | Sokoto Uprising of 1906 | British Empire | Rebels |
| 1906 | 1906 | 1906 Mesopotamia uprising | Ottoman Empire | Mesopotamian tribesmen |
| 1906 | 1906 | Dutch intervention in Bali (1906) | The Netherlands | Badung Tabanan Klungkung |
| 1906 | 1906 | Bambatha Rebellion | British Empire | Zulu |
| 1907 | 1907 | Campaign against the Mahafaly | France | Onilahy (Mahafaly) kingdom |
| 1907 | 1918 | Asir rebellion | Idrisid Emirate of Asir Supported by:  Kingdom of Italy (1911–1912)  British Empire (1915–1918) | Ottoman Empire |
| 1907 | 1907 | Dersim uprising of 1907 Part of the Dersim uprisings [tr] | Ottoman Empire | Kurdish rebels |
| 1907 | 1907 | War of 1907 | El Salvador | Nicaragua Salvadoran exiles American filibusters Honduras |
| 1907 | 1907 | Huanggang Uprising | Qing Dynasty | Rebels |
| 1907 | 1907 | Huizhou Qinühu Uprising | Qing Dynasty | Rebels |
| 1907 | 1907 | Anqing Uprising | Qing Dynasty | Rebels |
| 1907 | 1907 | Qinzhou Uprising | Qing Dynasty | Rebels |
| 1907 | 1907 | Zhennanguan Uprising | Qing Dynasty | Rebels |
| 1907 | 1907 | Bitlis uprising (1907) | Ottoman Empire | Kurdish rebels |
| 1907 | 1910 | Dembos War of 1907-1910 More info: Revoltas e Campanhas nos Dembos (1872–1919) (In Portuguese) | Portuguese Empire | Dembos |
| 1907 | 1907 | Anti-Foreign Revolt | France | Forces loyal to Sheika Ma Al-Ainine (Ma al-'Aynayn ?) |
| 1907 | 1907 | Mutair revolt | Emirate of Nejd and Hasa | Mutair tribe |
| 1907 | 1907 | 1907 Romanian peasants' revolt | Kingdom of Romania | Romanian peasants |
| 1907 | 1907 | Honduran-Nicaraguan War | Nicaragua | Honduras |
| 1907 | 1907 | Beipu uprising | Empire of Japan | Hakka Saisiyat |
| 1907 | 1907 | 1907 Diyarbakır uprising | Ottoman Empire Ibrahim Pasha's autonomy in Viranşehir | Rebels of Diyarbakır |
| 1907 | 1908 | Zakka Khel raids on towns and villages in the British Raj | British Raj | Zakka Khel clan of the Afridi |
| 1908 | 1908 | Qin-lian Uprising | Qing Dynasty | Rebels |
| 1908 | 1908 | Hekou Uprising | Qing Dynasty | Rebels |
| 1908 | 1908 | Mapaoying Uprising | Qing Dynasty | Rebels |
| 1908 | 1909 | Bondelswarts rebellion of 1908 | German Empire German South West Africa | Bondelswarts |
| 1908 | 1908 | Wad Habuba Revolt | British Empire | Neo-Madhist rebels |
| 1908 | 1909 | Lobi and Dyula revolt in Mali | France | Lobi and Dyula rebels |
| 1908 | 1914 | Mossi rebellions in Kouddigou and Fada N'gourma | France | Mossi rebels |
| 1908 | 1908 | Annam uprising | France French Indochina | Peasant rebels |
| 1908 | 1908 | Mohmand Expedition of 1908 Part of the instability on the North-West Frontier | British Raj | Mohmand rebels |
| 1908 | 1908 | Bazar Valley campaign | British Raj | Zakka Khel clan of the Afridi |
| 1908 | 1908 | Kurdish uprising of 1908 Part of the Dersim uprisings [tr] | Ottoman Empire | Kurdish rebels |
| 1908 | 1908 | Buraida rebellion | Emirate of Nejd and Hasa | Forces loyal to Muhammad Aba al-Kehil |
| 1908 | 1908 | Battle of Marrakech | Forces of Mulay Hafid | Forces of the Sultan of Morocco |
| 1908 | 1909 | Mau uprising [de] | German Empire | Indigenous rebels |
| 1908 | 1908 | Young Turk Revolution | Young Turks | Ottoman Empire |
| 1908 | 1910/1914 | Hamawand rebellion | Young Turks (Until 24 July 1908) Ottoman Empire (From 24 July 1908) | Kurdish rebels Hamawand tribe Ottoman Empire (Abdul Hamid II loyalists) (Until 24 July 1908) |
| 1908 | 1908 | Dutch intervention in Bali (1908) | Dutch Empire | Karangasem Klungkung Gelgel |
| 1908 | 1910 | Actions in the Toba and Batak islands | Dutch Empire | Anti-Dutch forces |
| 1908 | 1915 | Actions in West-Kalimantan | Dutch Empire | Anti-Dutch forces |
| 1908 | 1908 | Dutch–Venezuelan crisis of 1908 | Dutch Empire | Venezuela |
| 1908 | 1908 | Ngali War | Dutch Empire | Ngali People |
| 1909 | 1909 | 1909 Battle of Al Jawf | Ruwallah tribe | Emirate of Ha'il |
| 1909 | 1909 | Nyasaland resistance | British Empire Nyasaland | Rebels |
| 1909 | 1909 | Battle of Nias | Dutch Empire | Anti-Dutch forces |
| 1909 | 1911 | Actions on the Halmahera, Seram, Papua and Mentawei islands | Dutch Empire | Anti-Dutch forces |
| 1909 | 1909 | Kurdish uprising of 1909 Part of the Dersim uprisings [tr] | Ottoman Empire | Kurdish rebels |
| 1909 | 1909 | Estrada's rebellion | Nicaraguan Conservative Party | Nicaraguan Liberal Party (Government) |
| 1909 | 1909 | Kolašin Affair (1909) | Kingdom of Montenegro | Black Hand |
| 1909 | 1910 | Zaraniq rebellion (1909–1910) | Ottoman Empire | Zaraniq tribesmen |
| 1909 | 1909 | Crazy Snake Rebellion | United States | Creek |
| 1909 | 1910 | Second Melillan campaign | Spain | Riffian people |
| 1909 | 1910 | Hauran Druze Rebellion | Ottoman Empire | Druze rebels |
| 1909 | 1911 | Wadai War | France | Wadai Sultanate |

## 1910–1919

1910–1919 :
| Start | Finish | Name of Conflict | Belligerents | Belligerents |
| Start | Finish | Name of Conflict | Victorious party (if applicable) | Defeated party (if applicable) |
| 1910 | 1910 | Al-Bejat Revolution | Ottoman Empire | Al-Bejat clan |
| 1910 | 1910 | Gengxu New Army Uprising | Qing Dynasty | Rebels |
| 1910 | 1910 | 1910 uprising in Bukhara | Russian Empire  Emirate of Bukhara | Rebels |
| 1910 | 1910 | Portuguese conquest of the Angoche Sultanate | Portugal Mozambique | Angoche Sultanate |
| 1910 | 1910 | Uprising of Cape Nguni | German Empire German South West Africa | Nguni rebels |
| 1910 | 1912 | Xiong Mi Chang's rebellion | France  French Indochina | Rebels loyal to Xiong Mi Chang |
| 1910 | 1910 | Actions on Ajer HItam and near Timor | Dutch Empire | Anti-Dutch forces |
| 1910 | 1911 | Actions in Langkat (Location: Sumatra) | Dutch Empire | Anti-Dutch forces |
| 1910 | 1912 | Portuguese conquest of the Kasanje Kingdom | Portugal Angola | Kasanje Kingdom |
| 1910 | 1910 | Monégasque Revolution | Rebels | Monaco |
| 1910 | 1910 | Battle of Hadia [ar] | Kuwait Emirate of Nejd and Hasa | Al-Muntafiq |
| 1910 | 1910 | Karak Revolt | Ottoman Empire | Karakis |
| 1910 | 1910 | Bastar rebellion | British Empire | Tribal rebels |
| 1910 | 1910 | Albanian Revolt of 1910 | Ottoman Empire | Albanian rebels |
| 1910 | 1910 | 5 October 1910 revolution | Portuguese Republican Party | Kingdom of Portugal |
| 1910 | 1910 | Chinese expedition to Tibet (1910) | Qing Dynasty | Tibet |
| 1910 | 1911 | Sokehs Rebellion | German Empire | Sokehs rebels |
| 1910 | 1920 | Mexican Revolution | Maderistas Orozquistas Villistas Zapatistas Carrancistas Magonistas Seditionistas | Mexico |
| 1910 | 1919 | Border War (1910–19) Part of the Mexican Revolution | Constitutionalistas United States Maderistas | Villistas Seditionistas Carrancistas |
| 1910 | 1910 | Revolts at Moush | Ottoman Empire | Kurdish rebels |
| 1911 | 1911 | Revolts at Khuyt | Ottoman Empire | Kurdish rebels |
| 1911 | 1911 | 1911 Kenya revolt | British Empire | Forces loyal to Siume (a priestess) and Kiamba (a young man) |
| 1911 | 1911 | Belitung miner's revolt | Dutch Empire | Miner rebels |
| 1911 | 1911 | Kurdish uprising of 1911 Part of the Dersim uprisings [tr] | Ottoman Empire | Kurdish rebels |
| 1911 | 1913 | Revolt of Salar-al-Daulah | Sublime State of Persia | Forces of Salar-al-Daulah |
| 1911 | 1911 | Revolt of Mohammad Ali Shah Qajar | Sublime State of Persia | Forces of Mohammad Ali Shah Qajar |
| 1911 | 1911 | Magonista rebellion of 1911 Part of the Mexican Revolution | Mexico | Mexican Liberal Party |
| 1911 | 1912 | 1911 Paraguayan Civil War | Liberal Party | Paraguayan government |
| 1911 | 1911 | Russian Invasion of Tabriz Part of the Persian Constitutional Revolution | Russian Empire | Persian Constitutionalists |
| 1911 | 1911 | Albanian Revolt of 1911 | Ottoman Empire | Albanian Malësorë (highlanders) and Catholic tribes from Scutari Vilayet |
| 1911 | 1911 | Second Guangzhou Uprising | Qing Dynasty | Anti-Qing rebels |
| 1911 | 1912 | Dominican Civil War (1911–12) | Dominican Republic | Dominican Army conspirators |
| 1911 | 1912 | French conquest of Morocco | France | Morocco |
| 1911 | 1912 | Italo-Turkish War | Kingdom of Italy | Ottoman Empire |
| 1911 | 1912 | East Timorese Rebellion | Portuguese Empire | East Timorese rebels |
| 1911 | 1912 | Xinhai Revolution 1911 Revolution | Tongmenghui | Qing Dynasty |
| 1911 | 1912 | War of the Generals | Liberal rebels | Ecuador (Eloy Alfaro loyalists) |
| 1912 | 1912 | 1912 Kordofan uprising | British Empire Anglo-Egyptian Sudan | Faki Najm al-Din's forces |
| 1912 | 1912 | Turkoman Revolt of 1912–1913 | Russian Empire Khiva | Yomud Turkomans |
| 1912 | 1914 | Ecuadorian Civil War of 1912–1914 | Ecuador | Rebels of Esmeraldas Province |
| c. 1912 | c. 1912 | Sirte revolt | Kingdom of Italy | Rebels loyal to Ramadan Asswehly |
| 1912 | 1912 | Khost rebellion (1912) | Emirate of Afghanistan | Rebel tribes Mangal Jadran Ghilzai |
| 1912 | 1913 | First Balkan War | Kingdom of Bulgaria Kingdom of Greece Kingdom of Serbia Kingdom of Montenegro | Ottoman Empire |
| 1912 | 1912 | Albanian Revolt of 1912 | Albanian rebels | Ottoman Empire |
| 1912 | 1916 | Contestado War | Brazilian Governists | Contestado |
| 1912 | 1933 | United States occupation of Nicaragua Part of the Banana Wars | United States | Nicaraguan rebels |
| 1912 | 1912 | Royalist attack on Chaves | Portuguese First Republic | Portuguese Royalists |
| 1912 | 1912 | Negro Rebellion Part of the Banana Wars | Cuba United States | Independent Party of Color |
| 1913 | 1913 | 1913 uprising in Bukhara | Russian Empire  Emirate of Bukhara | Rebels |
| 1913 | 1913 | Oyango Dande rebellion | British Empire | Oyango Dande |
| 1913 | 1913 | Kurdish revolt of 1913 | Ottoman Empire | Kurdish rebels |
| 1913 | 1913 | 1913 Euphrates rebellion | Ottoman Empire | Al-Fatlah tribe |
| 1913 | 1920 | Muscat rebellion | British Empire Muscat and Oman | Imamate of Oman |
| 1913 | 1915 | Sino–Mongolian War of 1913–1915 [fi] | Republic of China | Bogd Khanate of Mongolia |
| 1913 | 1913 | Urtatagai conflict (1913) | Russian Empire | Emirate of Afghanistan |
| 1913 | 1913 | Atmene uprising [ru] | Russian Empire | Peasants |
| 1913 | 1913 | Conquest of al-Hasa Part of the Unification of Saudi Arabia | Emirate of Nejd and Hasa | Ottoman Empire |
| 1913 | 1913 | Second Balkan War | Ottoman Empire Kingdom of Greece Kingdom of Serbia Kingdom of Montenegro Kingdom of Romania | Kingdom of Bulgaria |
| 1913 | 1913 | Tikveš Uprising Part of the Second Balkan War | Kingdom of Serbia | Internal Macedonian Revolutionary Organization |
| 1913 | 1913 | Ohrid–Debar Uprising | Kingdom of Serbia | Internal Macedonian Revolutionary Organization |
| 1913 | 1913 | Second Revolution | Beiyang Government | Sun Yat-sen southern China provinces |
| 1913 | 1914 | Bai Lang Rebellion | Republic of China Jahriyya menhuan Xidaotang | Gelaohui |
| 1914 | 1914 | 1914 Kenya revolt | British Empire | Giriama rebels |
| 1914 | 1914 | North Java peasant revolt | Dutch Empire | Peasant rebels |
| 1914 | 1914 | Kolongongo War More info: The Mbunda Kingdom in Angola (Section "Kolongongo war") | Portugal Angola | Mbunda Kingdom |
| 1914 | 1914 | First Yemeni–Asiri war | Ottoman Empire Autonomous Yemeni Imamate | Idrisid Emirate of Asir |
| 1914 | 1914 | Dersim uprising of 1914 Part of the Dersim uprisings [tr] | Ottoman Empire | Kurdish rebels |
| 1914 | 1914 | Bitlis uprising | Ottoman Empire | Kurdish rebels Supported by:  Russian Empire |
| 1914 | 1914 | Uprising in Barzan | Ottoman Empire | Kurdish rebels loyal to Abdülselam Barzani Supported by:  Russian Empire |
| 1914 | 1917 | Kongo revolt of 1914 | Portugal Angola (1914) Congo (1914-1917) | Kingdom of Kongo (1914) Various rebel groups (1914–1917) |
| 1914 | 1914 | Operations in the Tochi Part of the instability on the North-West Frontier | British Empire | Rebel tribesmen from Khost |
| 1914 | 1914 | Revolt of Juazeiro [pt] | First Brazilian Republic | Rebels |
| 1914 | 1921 | Zaian War | France | Zaian Confederation |
| 1914 | 1914 | Dominican Civil War of 1914 | Rebels | Dominican Republic |
| 1914 | 1914 | Haitian Civil War | | |
| 1914 | 1914 | Blayong's uprising | British Empire North Borneo | Murut rebels |
| 1914 | 1914 | Peasant Revolt in Albania | Albania Romanian volunteers Austro-Hungarian volunteers Kosovar Albanian units | Albanian Muslim pro-Ottoman rebels |
| 1914 | 1914 | Truku War | Empire of Japan | Truku Tribe |
| 1914 | 1918 | World War I | Allied Powers:  British Empire  France  Russia (until 1917)  Serbia  Belgium  Montenegro  Japan  Italy (from 1915)  United States (from 1917)  Romania (1916–18)  Portugal (from 1916) Hejaz (from 1916) China (from 1917)  Greece (from 1917) Siam (from 1917) ...and others | Central Powers:  German Empire  Austria-Hungary  Ottoman Empire  Bulgaria (from 1915) ...and co-belligerents |
| 1914 | 1914 | United States occupation of Veracruz Part of the Banana Wars | United States | Mexico |
| 1914 | 1915 | Bluff War | United States | Ute Paiute |
| 1914 | 1917 | Ovambo Uprising | Portugal Portuguese Angola  United Kingdom  South Africa (from 1915) | Ovambo |
| 1914 | 1915 | Maritz Rebellion | Union of South Africa | South African Republic |
| 1915 | 1915 | 1915 Rehoboth Basters rebellion | German Empire German South West Africa | Rehoboth Basters |
| 1915 | 1918 | Second Saudi-Rashidi War | Emirate of Nejd and Hasa | Emirate of Jabal Shammar Ottoman Empire |
| 1915 | 1917 | Sadiavahe rebellion | France Colony of Madagascar and Dependencies | Sadiavahe movement |
| 1915 | 1915 | Kru Coast Rebellion | Liberia | Kru rebels |
| 1915 | 1915 | Botan revolt | Ottoman Empire | Kurdish rebels |
| 1915 | 1915 | Tapani incident | Empire of Japan | Han Taiwanese Taiwanese aborigines |
| 1915 | 1915 | Turkoman Revolt of 1915 | Russian Empire Khiva | Yomud Turkomans |
| 1915 | 1915 | Battle of Kanzaan (1915) [ar] | Nejd and Hasa | Ajman tribe |
| 1915 | 1915 | Battle of Jarrab Part of the Unification of Saudi Arabia and World War I | Emirate of Ha'il | Emirate of Nejd and Hasa |
| 1915 | 1915 | Chilembwe uprising | British Empire | Nyasaland rebels |
| 1915 | 1915 | Bussa rebellion | British Empire | Bussa warriors |
| 1915 | 1915 | 1915 Singapore Mutiny | British Empire | 5th Native Light Infantry sepoys |
| 1915 | 1915 | Kelantan rebellion | British Empire | Tok Janggut's rebel forces |
| 1915 | 1915 | Rundum revolt | British Empire | Antanum's rebel forces |
| 1915 | 1916 | Volta-Bani War | France | Tribal insurgents |
| 1915 | ? | Somba rebellion | | Tammari people |
| 1915 | 1916 | National Protection War Anti-Monarchy War | Republic of China | Empire of China |
| 1915 | 1916 | Gallipoli campaign Part of World War I | Ottoman Empire | United Kingdom  France |
| 1915 | 1917 | Senussi Campaign Part of World War I | British Empire Kingdom of Italy | Senussi Ottoman Empire Darfur Emirate |
| 1915 | 1934 | United States occupation of Haiti Part of the Banana Wars | United States | Haiti |
| 1916 | 1916 | Jambi uprising | Dutch Empire | Indonesian rebels in Sumatra |
| 1915 | 1915 | Operations against the Mohmands, Bunerwals and Swatis in 1915 Part of the instability on the North-West Frontier | British Empire | Rebel tribes Mohmands Bunerwals Swatis |
| 1915 | 1916 | Kalat Operations (1915-16) | British Empire | Kalat tribesmen |
| 1916 | 1934 | Yarahmadzai uprising | British Empire Sublime State of Persia | Yarahmadzai tribe |
| 1916 | 1916 | Dersim uprising of 1916 Part of the Dersim uprisings [tr] | Ottoman Empire | Kurdish rebels |
| 1916 | 1916 | 1916 Kumyk uprising | Russian Empire | Kumyk rebels |
| 1916 | 1917 | Mohmand blockade Part of the instability on the North-West Frontier | British Empire | Mohmands |
| 1916 | 1918 | Cuban Civil War (See Sugar Intervention) | Mario García Menocal loyalists United States | Pro-José Miguel Gómez rebels |
| 1916 | 1917 | Kaocen Revolt | France | Tuareg guerrillas |
| 1916 | 1916 | 1916 Cochinchina uprising | France | Cochinchina rebels |
| 1916 | 1916 | Battle of Segale | Regents of Ethiopia | Lij Iyasu loyalists |
| 1916 | 1916 | Noemvriana | Kingdom of Greece | United Kingdom France |
| 1916 | 1916 | Central Asian revolt of 1916 | Russian Empire | Rebels |
| 1916 | 1916 | Easter Rising | British Army Dublin Metropolitan Police Royal Irish Constabulary | Irish Republican Brotherhood Irish Volunteers Irish Citizen Army Cumann na mBan Hibernian Rifles Fianna Éireann |
| 1916 | 1924 | United States occupation of the Dominican Republic (1916–24) Part of the Banana Wars | United States | Dominican rebels |
| 1916 | 1918 | Arab Revolt Part of World War I | Hashemite Arabs United Kingdom Sultanate of Nejd (Unification of Saudi Arabia) | Ottoman Empire |
| 1916 | 1934 | Basmachi movement Part of World War I and Russian Civil War | Russian Empire (1916–17) Russian Republic (1917)  Russian SFSR Turkestan ASSR Khorezm SSR Bukharan PSR  Soviet Union (From December 30, 1922) | Basmachi Khiva (1918–20) White Army (1919–20) Bukhara (1920) Supported by:  Emirate of Afghanistan (Until mid-1922) Afghanistan (1929) |
| 1917 | 1917 | Uukwanyama rebellion | British Empire  South Africa | Uukwanyama rebels |
| 1917 | 1917 | 1917 Uganda rebellion | British Empire | Forces loyal to Rembe |
| 1917 | 1917 | Kurdish uprisings of 1917 | Ottoman Empire | Kurdish rebels Supported by:  Russian Empire |
| 1917 | 1917 | February Revolution | Russian revolutionaries | Russian Empire |
| 1917 | 1917 | July Days | Russian Provisional Government | Bolshevik Party |
| 1917 | 1917 | Operations against the Mahsuds (1917) | British Empire | Mahsud rebels |
| 1917 | 1917 | Manchu Restoration | Republic of China | Monarchist rebels |
| 1917 | 1917 | Thái Nguyên uprising | French colonial empire | Vietnamese rebels |
| 1917 | 1917 | Polubotkivtsi Uprising | Russian Provisional Government | Ukrainian separatists |
| 1917 | 1917 | Toplica insurrection | Kingdom of Bulgaria | Chetniks |
| 1917 | 1918 | 1917 Kanak revolt [fr] | French colonial empire New Caledonia | Kanak rebels |
| 1917 | 1917 | Kornilov Affair | Russian Provisional Government | Soldiers under Lavr Kornilov |
| 1917 | 1917 | Green Corn Rebellion | United States | Anti-draft rebels |
| 1917 | 1917 | October Revolution Part of Russian Civil War | Bolsheviks | Russian Provisional Government |
| 1917 | 1917 | Kerensky–Krasnov uprising Part of Russian Civil War | Russian SFSR | Rebels under Alexander Kerensky |
| 1917 | 1922 | Russian Civil War | Victorious in Russia, Ukraine, Georgia, Armenia, Azerbaijan, Kazakhstan, and Mongolia:  Russian SFSR Other Soviet republics Mongolian People's Party Victorious in their respective countries: Kingdom of Finland Republic of Estonia Republic of Latvia Republic of Lithuania Second Polish Republic | White Movement Central Powers (until 1918):  Austro-Hungarian Empire  German Empire  Ottoman Empire Allied Forces (from 1918): Czechoslovakia Republic of China France  Kingdom of Greece  Kingdom of Italy  Empire of Japan Poland  Kingdom of Romania  Kingdom of Serbia  United Kingdom  Australia  Canada  United States Other combatants: Revolutionary Insurrectionary Army of Ukraine Ukrainian People's Republic Democratic Republic of Georgia Democratic Republic of Armenia Various pro-independence movements |
| 1917 | 1922 | Constitutional Protection Movement | Beiyang Government | Guangzhou Military Government |
| 1917 | 1921 | Ukrainian War of Independence Part of World War I and Russian Civil War | Ukrainian SSR Russian SFSR | Ukrainian People's Republic West Ukrainian People's Republic White Movement |
| 1917 | 1949 | Ngolok rebellions (1917–49) | Republic of China | Ngolok tribesmen |
| 1918 | 1918 | Operations against the Marri and Khetran tribes (1918) Part of the instability on the North-West Frontier | British Empire | Marri and Khetran tribesmen |
| 1918 | 1918 | Adubi War | British Empire | Egba rebels |
| 1918 | 1922 | Simko Shikak revolt (1918–22) | Iran Qajars (1919–1921) Pahlavis (1921–1922) | Rebels Irregular Kurdish militias Ottoman soldiers and mercenaries |
| 1918 | 1918 | Judenburg mutiny Part of World War I | Austria-Hungary | 17th Infantry Regiment |
| 1918 | 1918 | Cattaro Mutiny Part of World War I | Austria-Hungary | Elements of the Austro-Hungarian Navy |
| 1918 | 1918 | Aster Revolution Part of World War I | Hungarian National Council | Austria-Hungary |
| 1918 | 1918 | Radomir Rebellion Part of World War I | Kingdom of Bulgaria | Bulgarian Agrarian National Union |
| 1918 | 1918 | Left SR uprising Part of the Russian Civil War | Russian SFSR | Left Socialist Revolutionary Party |
| 1918 | 1918 | Finnish Civil War | Finnish White Guards German Empire | Finnish Red Guards Russian SFSR |
| 1918 | 1918 | Georgian–Armenian War | First Republic of Armenia | Democratic Republic of Georgia |
| 1918 | 1958 | Polish–Czechoslovak border conflicts | Second Polish Republic | First Czechoslovak Republic (until 1938) Second Czechoslovak Republic (1938–1939) First Slovak Republic (1939–1945) Third Czechoslovak Republic (1945–1948) Czechoslovak Socialist Republic (1948–1958) |
| 1918 | 1918 | Internal conflict in the Banat Republic | Banat Republic | Serb National Council at Timișoara Serb National Council at Pančevo Timișoara Citizens' Guard "Octobrists" Green Cadres Socialist rebels Romanian rebels |
| 1918 | 1918 | Serbian incursion into the Banat Republic | Kingdom of Serbia | Banat Republic |
| 1918 | 1918 | Viena expedition | Russian SFSR Finnish Red Guards United Kingdom | Finnish White Guards Finnish Jäger troops |
| 1918 | 1918 | First Pechenga expedition | Russian SFSR Finnish Red Guards Murmansk Legion | Finnish volunteers |
| 1918 | 1919 | Austro-Slovene conflict in Carinthia | State of Slovenes, Croats and Serbs Kingdom of Yugoslavia | Republic of German-Austria |
| 1918 | 1919 | German Revolution of 1918–19 | Weimar Republic Reichswehr Social Democratic Party of Germany | Royalist Forces: German Empire (1918) Imperial German Army Communist Forces: Bavarian Soviet Republic Spartacus League German Communist movements |
| 1918 | 1919 | Greater Poland Uprising (1918–19) | Poland | German Empire |
| 1918 | 1919 | Hungarian–Czechoslovak War | First Hungarian Republic Hungarian Soviet Republic | First Czechoslovak Republic |
| 1918 | 1919 | Polish–Ukrainian War Part of the Ukrainian War of Independence | Poland | West Ukrainian People's Republic |
| 1918 | 1920 | Georgian–Ossetian conflict (1918–20) Part of the Russian Civil War | Transcaucasian Democratic Federative Republic Democratic Republic of Georgia | Pro-Bolshevik Ossetian rebels |
| 1918 | 1919 | Sochi conflict Part of the Russian Civil War | White movement Kuban-Black Sea Soviet Republic | Democratic Republic of Georgia |
| 1918 | 1920 | Armenian–Azerbaijani War Part of the Russian Civil War | First Republic of Armenia Republic of Mountainous Armenia Nagorno-Karabakh rebels  British Empire (1918 only) Centrocaspian Dictatorship (1918 only) | Azerbaijan Democratic Republic  Ottoman Empire (1918 only)  Russian SFSR (from April 1920) Turkish National Movement (from April 1920) |
| 1918 | 1920 | Estonian War of Independence Part of the Russian Civil War | Estonia White Russia  Latvia  United Kingdom Ingria Ober Ost Finnish, Swedish and Danish volunteers | Russian SFSR Commune of Estonia  Latvian SSR |
| 1918 | 1920 | Latvian War of Independence Part of the Russian Civil War | Latvia  Estonia Poland  United Kingdom France | Russian SFSR  Latvian SSR |
| 1918 | 1919 | Lithuanian–Soviet War Part of the Lithuanian Wars of Independence | Lithuania Saxon volunteers | Russian Soviet Federative Socialist Republic Lithuanian-Belorussian Soviet Socialist Republic |
| 1918 | 1919 | Al-Khurma dispute Part of the Unification of Saudi Arabia | Emirate of Riyadh | Kingdom of Hejaz |
| 1918 | 1921 | War of the Insane | French Indochina | Hmong rebels |
| 1918 | 1920 | Revolt of the Ingrian Finns | Russian SFSR | North Ingria Finnish volunteers |
| 1918 | 1921 | Franco-Turkish War Part of the Turkish War of Independence | Turkish National Movement | France French Armenian Legion |
| 1919 | 1923 | Second Yemeni–Asiri War | Idrisid Emirate of Asir Supported by:  British Empire | Mutawakkilite Kingdom of Yemen |
| 1919 | 1919 | Toli-Toli incident | Dutch Empire | Anti-Dutch forces |
| 1919 | 1919 | Garut incident | Dutch Empire | Anti-Dutch forces |
| 1919 | 1919 | Punjab Rebellion (See: Amritsar Massacre) Part of the instability on the North-West Frontier | British Empire | Rebels |
| 1919 | 1919 | Black Sea mutiny | France | Mutineers |
| 1919 | 1919 | 1919 Royalist uprising in Northern Portugal | First Portuguese Republic | Monarchy of the North |
| 1919 | 1919 | Christmas Uprising | Montenegrin Whites Kingdom of Yugoslavia | Montenegrin Greens Kingdom of Italy |
| 1919 | 1919 | Spartacist uprising Part of the German Revolution of 1918–19 | Interim government Freikorps | Communist Party of Germany Spartacus League Independent Social Democratic Party of Germany |
| 1919 | 1919 | Lithuanian War of Independence (War against the Bermontians) Part of the Lithuanian Wars of Independence | Lithuania | West Russian Volunteer Army |
| 1919 | 1919 | Sejny Uprising | Polish Military Organization (PMO) 41st Infantry Regiment | Lithuanian Sejny Command 1st Reserve Battalion |
| 1919 | 1919 | First Barzanji Revolt | British Empire | Kurdish Tribesmen |
| 1919 | 1919 | Polish–Czechoslovak War Part of the Polish–Czechoslovak border conflicts | Czechoslovakia | Second Polish Republic |
| 1919 | 1919 | Khotyn Uprising | Romania | Ukrainian rebels |
| 1919 | 1919 | Hungarian–Romanian war of 1919 | Romania | First Hungarian Republic (until 21 March 1919) Hungarian Soviet Republic |
| 1919 | 1922 (Armistice) 1923 (Treaty) | Turkish War of Independence | Turkish National Movement Grand National Assembly (after 1920) Kuva-yi Nizamiye Kuva-yi Milliye (until 1920) Supported by:  Russian SFSR | Greece France Armenia (in 1920) United Kingdom Ottoman Empire (until 1922) Kuva-yi Inzibatiye (in 1920)  Italy Georgia (in 1921) |
| 1919 | 1919 | Third Anglo-Afghan War | Afghanistan | British Empire  India |
| 1919 | 1920 | Waziristan campaign (1919–1920) | British Empire  India | Waziristan |
| 1919 | 1919 | Impresa di Fiume | Forces loyal to Gabriele D'Annunzio | American, British and French occupying forces |
| 1919 | 1920 | Italo-Yugoslav War | Kingdom of Italy Free State of Fiume | Kingdom of Serbs, Croats and Slovenes |
| 1919 | 1919 | First Honduran Civil War | Rebels | Honduras |
| 1919 | 1921 | Polish–Soviet War | Republic of Poland Ukrainian People's Republic | Russian SFSR Ukrainian SSR |
| 1919 | 1919 | First Silesian Uprising Part of the Silesian Uprisings | Weimar Republic | Silesian Rebels |
| 1919 | 1919 | Aunus expedition | Russian SFSR Finnish Red Guards | Finnish White Guards Finnish Jäger troops |
| 1919 | 1920 | Alawite Revolt of 1919 | France | Syrian insurgents |
| 1919 | 1921 | Irish War of Independence | Irish Republic | United Kingdom |
| 1919 | 1920 | Kuwait–Najd War | Kuwait British Empire | Ikhwan Bedouins |
| 1919 | 1922 | Greco-Turkish War (1919–1922) Part of the Turkish War of Independence | Turkish National Movement Supported by: Russian SFSR | Kingdom of Greece Supported by: United Kingdom Armenian volunteers |
| 1919 | 1923 | Revolts during the Turkish War of Independence | Turkish National Movement | Ottoman Empire Kuva-yi Inzibatiye (in 1920) Pontic rebels Milli tribe Koçgiri tribe Rebels of Ethem the Circassian (1920–1921) |

## 1920–1929

1920–1929 :
| Start | Finish | Name of Conflict | Belligerents | Belligerents |
| Start | Finish | Name of Conflict | Victorious party (if applicable) | Defeated party (if applicable) |
| 1920 | 1920 | Franco-Syrian War | France French Syria | Syrian rebels |
| 1920 | 1920 | 1920 uprising in Afghanistan | Afghanistan | Safi regiment |
| 1920 | 1920 | Misurata-Warfala War | Warfallan tribesmen | Tripolitanian Republic |
| 1920 | 1920 | Husino rebellion | Kingdom of Serbs, Croats and Slovenes | Bosnian miners |
| 1920 | 1920 | 1920 Iraqi Revolt | British Empire | Iraqi rebels |
| 1920 | 1920 | Vlora War | Principality of Albania | Kingdom of Italy |
| 1920 | 1922 | 1920–1922 Jabal al-Gharbi civil war | Tribal fighters | Tribal fighters |
| 1920 | 1920 | Polish–Lithuanian War Part of the Lithuanian Wars of Independence | Poland | Lithuania |
| 1920 | 1920 | Kapp Putsch | Weimar Republic | Far-right Freikorps |
| 1920 | 1920 | Ruhr Uprising | Weimar Republic Freikorps | Red Ruhr Army |
| 1920 | 1920 | Second Silesian Uprising Part of the Silesian Uprisings | Weimar Republic | German civil government and police of Upper Silesia |
| 1920 | 1920 | 1920 Georgian coup attempt | Democratic Republic of Georgia | Georgian Bolsheviks |
| 1920 | 1920 | May Uprising | First Republic of Armenia Armenian Revolutionary Federation | Armenian Bolsheviks Muslims of Armenia |
| 1920 | 1920 | Turkish–Armenian War Part of the Turkish War of Independence | Turkish National Movement Russian SFSR | First Republic of Armenia |
| 1920 | 1920 | Zhili–Anhui War Part of the Warlord Era | Zhili clique Fengtian clique | Anhui clique |
| 1920 | 1920 | Second Pechenga expedition | Russian SFSR Finnish Red Guards Murmansk Legion | Finnish volunteers |
| 1920 | 1921 | Guangdong–Guangxi War Part of the Warlord Era | Old Guangxi clique | Chinese Revolutionary Party |
| 1920 | 1921 | Dagestan Uprising Part of the Russian Civil War | Russian SFSR | Dagestani rebels |
| 1920 | 1926 | Rif War | France Spain | Rif Republic |
| 1920 | 1920 | 1920 Upper Asir conflict | Rebel tribes Sultanate of Nejd | Sheikdom of Upper Asir |
| 1921 | 1921 | 1921 Khorosan rebellion | Iran | Autonomous Government of Khorasan |
| 1921 | 1921 | Kurdish uprising of Autumn 1921 | Turkey | Anti-Kemalist Kurdish rebels |
| 1921 | 1921 | Waziristan campaign (1921–1924) | British Empire  India | Waziristan |
| 1921 | 1921 | Anti-fascist uprising in Albona | Kingdom of Italy | Albona Republic |
| 1921 | 1921 | Red Army invasion of Georgia Part of the Russian Civil War | Russian SFSR Turkey | Democratic Republic of Georgia |
| 1921 | 1921 | Kronstadt rebellion Part of the Russian Civil War | Russian SFSR | Anarchist sailors |
| 1921 | 1921 | February Uprising Part of the Russian Civil War | Revolutionary committee (Revkom) of Armenia | Armenian Revolutionary Federation |
| 1921 | 1921 | Coto War | Costa Rica | Panama |
| 1921 | 1921 | Battle of Mountainous Armenia Part of the Russian Civil War | Armenia | Russian SFSR Turkey Azerbaijan SSR |
| 1921 | 1921 | March Action | Weimar Republic | Communist Party of Germany Communist Workers' Party of Germany |
| 1921 | 1921 | Third Silesian Uprising Part of the Silesian Uprisings | Weimar Republic | Silesian rebels Poland |
| 1921 | 1921 | Mongolian Revolution of 1921 Part of Russian Civil War | Mongolian Communists Russian SFSR | Bogd Khaanate White Guards |
| 1921 | 1921 | Charles I of Austria's attempts to retake the throne of Hungary | Regentists | Loyalists |
| 1921 | 1921 | Uprising in West Hungary | Austria Hungary | Rongyos Gárda Lajtabánság Bosnian and Albanian Muslim volunteers |
| 1921 | 1921 | Malabar rebellion | British Empire | Khilafat Movement |
| 1921 | 1921 | 1921 Persian coup d'etat | Persian Cossack Brigade | Iranian Qajar police Jangalis Simko Kurdish rebels Colonel Pesian's forces supported by: Soviet Union |
| 1921 | 1921 | Conquest of Ha'il | Sultanate of Nejd | Emirate of Ha'il |
| 1921 | 1922 | East Karelian Uprising and Soviet–Finnish conflict 1921–22 Part of Russian Civil War | Russian SFSR | Finnish and East Karelian rebels |
| 1921 | 1922 | Rand Rebellion | Union of South Africa | Miners South African Communist Party Syndicalists |
| 1921 | 1923 | Kura Rebellion | United Kingdom Emir Abdullah | Sheikh Kulaib |
| 1921 | 1921 | Ikhwan attack on Najran | Ikhwan | Principality of Najran |
| 1922 | 1922 | 18 of the Copacabana Fort revolt | First Brazilian Republic | Tenentista movement |
| 1922 | 1922 | 1922 bombardment of Yemen | British Empire British RAF | Mutawakkilite Kingdom of Yemen |
| 1922 | 1924 | Ikhwan raids on Transjordan | British RAF Pro-Hashemite tribesmen: Adwan Ajarma Abbad Bani Hasan Bani Hamaida Bani Sakhr Hadid | Ikhwan ('Utaybah tribe) |
| 1922 | 1922 | Bondelswarts Rebellion | Union of South Africa South West Africa | Bondelswarts |
| 1922 | 1922 | San rebellion | Union of South Africa | San rebels |
| 1922 | 1922 | 1922 Uukwambi revolt | Union of South Africa | Uukwambi rebels |
| 1922 | 1922 | First Zhili–Fengtian War Part of the Warlord Era | Zhili clique | Fengtian clique |
| 1922 | 1924 | Rampa Rebellion of 1922 | British Empire  British Raj | Rebel forces loyal to Alluri Sitarama Raju |
| 1922 | 1922 | 11 September 1922 Revolution | Venizelist rebels | Kingdom of Greece |
| 1922 | 1923 | Irish Civil War | Pro-treaty forces | Anti-treaty forces |
| 1922 | 1923 | Paraguayan Civil War (1922) | Gondrists | Schaererists |
| 1922 | 1924 | Sheikh Khazal rebellion Part of the Arab separatism in Khuzestan | Sublime State of Persia | Sheikhdom of Mohammerah Bakhtiari Tribesmen |
| 1922 | 1924 | Second Barzanji Revolt | British Empire Kingdom of Iraq (British administration) | Kingdom of Kurdistan |
| 1922 | 1927 | Tenente revolts | First Brazilian Republic | Tenentismo Brazilian Communist Party |
| 1923 | 1941 | Aden Protectorate Insurgency | British Empire Aden Protectorate | Rebel tribes: Makhdumi Mansuri Hukais Subayhi Ahl Ma'ir Qutaybi Mawsata Shayri Ahl Haydara Hamumi |
| 1923 | 1923 | Alizai rebellion of 1923 | Emirate of Afghanistan | Alizai |
| 1923 | 1923 | Corfu incident | Kingdom of Italy | Kingdom of Greece |
| 1923 | 1923 | De la Huerta Rebellion [es] | Mexican government | Forces loyal to Adolfo de la Huerta |
| 1923 | 1923 | June Uprising | Bulgaria IMRO Shpitskomandi | Bulgarian Communist Party Bulgarian Agrarian National Union Anarchists |
| 1923 | 1923 | Leonardopoulos–Gargalidis coup d'état attempt | Kingdom of Greece | Monarchist rebels |
| 1923 | 1923 | Adwan Rebellion | United Kingdom Emir Abdullah's forces Hashemite allied tribesmen | Sultan al-Adwan's forces |
| 1923 | 1923 | Posey War | United States | Ute Paiute |
| 1923 | 1923 | Hamburg Uprising | Weimar Republic | Communist Party of Germany |
| 1923 | 1923 | Beer Hall Putsch | Weimar Republic | Nazi Party |
| 1923 | 1923 | Klaipėda Revolt | Lithuania | French Third Republic |
| 1923 | 1923 | September Uprising | Bulgaria IMRO Shpitskomandi | Bulgarian Communist Party Bulgarian Agrarian National Union Anarchists |
| 1923 | 1932 | Pacification of Libya | Kingdom of Italy | Senussi Order |
| 1923 | Ongoing | Arab separatism in Khuzestan | Sublime State of Iran (1922–1924) Imperial State of Iran (1925–1979) Islamic Republic of Iran (1979–present) | Sheikhdom of Mohammerah (1922–1924) DRFLA (1979–1980) APCO PFLA AFLA ASMLA Iranian Arab protesters |
| 1924 | 1925 | Chechen uprising of 1924 | Soviet Union | Chechen rebels |
| 1924 | 1925 | Turkoman Rebellion in Eastern Iran | Sublime State of Persia | Turkmen rebels |
| 1924 | 1924 | São Paulo Revolt of 1924 | First Brazilian Republic | Tenentista movement |
| 1924 | 1924 | Beytüşşebab rebellion | Turkey | Kurdish rebels |
| 1924 | 1924 | Zazejskie uprising [ru] | Soviet Union | Rebels |
| 1924 | 1924 | Second Honduran Civil War | Rebels | Honduras |
| 1924 | 1925 | Khost rebellion (1924–1925) | Emirate of Afghanistan Allied tribes: Khogyani Shinwari | Rebel tribes Mangal Alikhel Sulaimankhel Jaji Jadran Ahmadzai |
| 1924 | 1928 | 1924–1928 Saqqawist insurgency in Afghanistan Escalated into the Afghan Civil War | Saqqawists | Emirate of Afghanistan |
| 1924 | 1924 | Vaalgras revolt | Union of South Africa | Vaalgras |
| 1924 | 1924 | August Uprising | Soviet Union | Committee for Independence of Georgia |
| 1924 | 1925 | Tungus uprising [ru] | Soviet Union | Tungus Republic |
| 1924 | 1924 | June Revolution | Faction of Fan Noli | Principality of Albania |
| 1924 | 1924 | 1924 Estonian coup d'état attempt | Estonia | Comintern |
| 1924 | 1924 | Tatarbunary Uprising | Romania | Soviet Union |
| 1924 | 1925 | Saudi conquest of Hejaz | Sultanate of Nejd British Empire | Kingdom of Hejaz |
| 1924 | 1924 | Nestorian rebellion | Turkey | Nestorians |
| 1924 | 1924 | Second Zhili–Fengtian War Part of the Warlord Era | Fengtian clique | Zhili clique |
| 1924 | 1926 | Third Yemeni–Asiri War | Mutawakkilite Kingdom of Yemen | Idrisid Emirate of Asir |
| 1924 | 1924 | First Asiri Civil War | Idrisid Emirate of Asir (Sayyid Ali ibn Muhammad al-Idrisi loyalists) | Rebels led by Mustafa |
| 1925 | 1925 | 1925 Rehoboth Basters rebellion | Union of South Africa | Rehoboth Basters |
| 1925 | 1925 | Incident at Petrich | Kingdom of Bulgaria | Kingdom of Greece |
| 1925 | 1925 | Guna Revolution | Panama | Guna rebels |
| 1925 | 1925 | Sheikh Said rebellion | Turkey | Kurdish tribesmen |
| 1925 | 1925 | Pink's War | United Kingdom | Mahsud tribesmen |
| 1925 | 1925 | Raçkotan and Raman pacifying operations | Turkey | Kurdish rebels |
| 1925 | 1937 | Sason rebellion | Turkey | Kurdish rebels |
| 1925 | 1929 | Zaraniq rebellion (1925–1929) | Mutawakkilite Kingdom of Yemen | Zaraniq tribe Supported by: Kingdom of Hejaz and Nejd  United Kingdom |
| 1925 | 1927 | Great Syrian Revolt | France | Syrian rebels |
| 1925 | 1926 | Anti-Fengtian War Part of the Warlord Era | Fengtian clique Zhili clique (from February 1918) | Guominjun Zhili clique (until February 1918) |
| 1925 | 1926 | Urtatagai conflict | Soviet Union | Emirate of Afghanistan |
| 1925 | 1926 | Second Asiri Civil war | Rebels led by Sayyid al-Hasan ibn Ali al-Idrisial-Hasani Supported by: Sultanate of Nejd | Idrisid Emirate of Asir (Sayyid Ali ibn Muhammad al-Idrisi loyalists) |
| 1926 | 1926 | Asiri tribal revolts of 1926 | Idrisid Emirate of Asir | Rebel tribes |
| 1926 | 1927 | Tarimese Civil War | Government of the Sultanate of Tarim "The League" Kathiri | Tamimi rebels |
| 1926 | 1926 | 1926 Simko Shikak revolt | Pahlavi Iran | Shikak tribesmen Herki tribesmen Begzadeh tribesmen |
| 1926 | 1927 | Nicaraguan civil war (1926-1927) | Nicaraguan Conservatives (government) | Nicaraguan Liberals (rebels) |
| 1926 | 1928 | Northern Expedition Part of the Warlord Era | Republic of China | Beiyang Government |
| 1926 | 1929 | Cristero War | Mexico | Cristeros |
| 1926 | 1926 | 1926 Communist Revolt in Indonesia | Dutch Empire | Communist Party of Indonesia |
| 1927 | 1927 | 1927 Nuer uprising | | |
| 1927 | 1930 | Ararat rebellion | Turkey | Republic of Ararat |
| 1927 | 1930 | Ikhwan Revolt | Ibn Saud United Kingdom Kuwait | Ikhwan |
| 1927 | 1928 | Confederalist Rebellion [ru] | Soviet Union | Mlado-Yakut Party of Confederalists |
| 1927 | 1927 | 1927 Kurdish rebellions | Turkey | Kurdish rebels |
| 1927 | 1927 | Ikhwan raid on Busayya Part of the Ikhwan revolt | Ikhwan | Iraqi Police force |
| 1927 | 1950 | Chinese Civil War | Chinese Communist Party After 1949: People's Republic of China | Nationalist Party of China Republic of China After 1949: Republic of China on Taiwan |
| 1928 | 1935 | Persian conquest of West Baluchistan | Sublime State of Persia | West Baluchistan |
| 1928 | 1932 | Hamed bin Rafda's rebellion [ar] | Ibn Saud | Rebels loyal to Hamed bin Rafda |
| 1928 | 1928 | Haji Abdul Rahman Limbong's rebellion | British Empire North Borneo | Rebels |
| 1928 | 1929 | Afghan Civil War (1928–1929) | Amānullāh Khān (Until 14 January 1929) Inayatullah Khan (14–17 January 1929) Ali Ahmad Khan (17 January – 9 February 1929) Various anti-Saqqawist tribes Wardak Maydan Jalriz Sanglakh Mohammed Nādir Khān (March–October 1929) Intervening against Basmachi: Soviet Union | Shinwari tribesmen (14 November–December 1928) Saqqawists (November 1928 – 17 January 1929) Emirate of Afghanistan (18 January – 13 October 1929) In cooperation with: Basmachi (1929) |
| 1928 | 1931 | Kongo-Wara rebellion | France | Gbaya rebels |
| 1929 | 1931 | Kazakh revolts (1929–1931) [ru] | Soviet Union | Kazakh Rebels |
| 1929 | 1929 | Escobar Rebellion | Mexico | Escobar rebels |
| 1929 | 1929 | 1929 Basmachi border raids on the Soviet Union | Soviet Union | Basmachi |
| 1929 | 1929 | Chiang-Gui War Part of the Warlord Era | Republic of China | New Guangxi Clique |
| 1929 | 1929 | Afghan campaign of the Red Army (1929) | Soviet Union | Basmachi |
| 1929 | 1929 | Sino-Soviet conflict (1929) | Soviet Union | Republic of China |
| 1929 | 1930 | Alakat Uprising [ru] | Soviet Union | Rebels |
| 1929 | 1929 | 1929 Kurdish rebellions | Turkey | Kurdish rebels |
| 1929 | 1931 | Anti-Saqqawist campaigns in Kuhdaman and Herat | Kingdom of Afghanistan | Saqqawists |
| 1929 | 1930 | Women's War | Igbo Women of Owerri and Calabar Provinces | Warrant Chiefs British Colonial Forces |
| 1929 | 1929 | Antananarivo uprising | France Colony of Madagascar and Dependencies | Rebels |
| 1929 | 1929 | Persian tribal uprisings of 1929 | Sublime State of Persia | Qashqai, Khamseh, Buyir Ahmadi and Bakhtiari rebels |
| 1929 | 1929 | Nejd Civil War | Kingdom of Hejaz and Nejd | Rebels |
| 1929 | 1930 | Central Plains War Part of the Warlord Era | Forces of Chiang Kai-shek | Forces of the coalition of Yan Xishan, Feng Yuxiang, Wang Jingwei, and Li Zongren |

## 1930–1944

| Start | Finish | Name of Conflict | Belligerents | Belligerents |
| Start | Finish | Name of Conflict | Victorious party (if applicable) | Defeated party (if applicable) |
| 1930 | 1930 | Shinwari rebellion | Kingdom of Afghanistan | Shinwari tribesmen |
| 1930 | 1930 | 1930 Kurdish rebellions | Turkey | Kurdish rebels |
| 1930 | 1931 | Afridi Redshirt Rebellion | British Empire | Afridi tribesmen |
| 1930 | 1931 | Uprising of the Nghệ-Tĩnh Soviets | French colonial empire | Nghệ-Tĩnh Soviets |
| 1930 | 1930 | Hnov uprising [ru] | Soviet Union | Rebels |
| 1930 | 1930 | Gugsa Wale's rebellion | Haile Selassie loyalists | Empress Zewditu supporters |
| 1930 | 1930 | Kuhistan rebellion (February–April 1930) | Kingdom of Afghanistan | Rebels |
| 1930 | 1930 | Yên Bái mutiny | French Indochina | VNQDD |
| 1930 | 1930 | Muromtsevsky uprising [ru] | Soviet Union | Rebels |
| 1930 | 1930 | Tugsbuyant uprising [ru] | Mongolian People's Republic | Buddhist clergy, former feudal lords, Arats |
| 1930 | 1932 | Saya San Rebellion | British Empire | Burmese rebels |
| 1930 | 1930 | Chittagong armoury raid | British Empire | Anushilan Samiti |
| 1930 | 1930 | Red Army intervention in Afghanistan (1930) | Soviet Union | Basmachi |
| 1930 | 1930 | Kuhistan rebellion (July 1930) | Kingdom of Afghanistan | Saqqawists |
| 1930 | 1932 | Sino-Tibetan War | Republic of China | Tibet |
| 1930 | 1930 | Brazilian Revolution of 1930 | Liberal Alliance and tenentistas. Brazilian Army | First Brazilian Republic |
| 1930 | 1930 | Khorinskoe uprising [ru] | Soviet Union | Rebels |
| 1930 | 1930 | Musha Incident | Empire of Japan Toda Truku (Taroko) | Tkdaya |
| 1930 | Ongoing | Xinjiang conflict | China | Uyghur separatist movements Including: 1969–1989: East Turkestan People's Revolutionary Party Supported by:  Soviet Union  Mongolia 1980s–2017: Turkistan Islamic Party Supported by: Al-Qaeda Pakistani Taliban Many other small groups |
| 1931 | 1931 | 1931 Saudi–Yemeni border skirmish | Kingdom of Hejaz and Nejd | Mutawakkilite Kingdom of Yemen |
| 1931 | 1932 | Ahmed Barzani revolt | Kingdom of Iraq | Barzan tribe |
| 1931 | 1931 | Flour Revolt [pt] | Portugal | Rebels |
| 1931 | 1934 | Kumul Rebellion | Republic of China | First East Turkestan Republic |
| 1931 | 1931 | Uranian peasant uprising [ru] | Soviet Union | Rebels |
| 1931 | 1931 | Chilean naval mutiny of 1931 | Chile | Chilean Navy rebels |
| 1931 | 1931 | Jafar Sultan revolt Part of the Kurdish separatism in Iran | Iran | Kurdish rebels |
| 1931 | 1932 | Japanese invasion of Manchuria | Empire of Japan | Republic of China |
| 1931 | 1931 | 1931 Cyprus revolt | British Empire | Greek Cypriot rebels |
| 1931 | 1933 | Idrisid Emirate Rebellion [ar] | Saudi Arabia | Idrisid Emirate Supported by: Mutawakkilite Kingdom of Yemen |
| 1931 | 1931 | Norte Grande insurrection | Chile | Communist Party of Chile |
| 1931/32 | 1932 | Najran conflict | Saudi Arabia | Yemen |
| 1932 | 1932 | Uukwambi uprising | Union of South Africa | Uukwambi rebels |
| 1932 | 1932 | Annexation of Jimma | Ethiopian Empire | Kingdom of Jimma |
| 1932 | 1932 | Chechen uprising of 1932 [ru] | Soviet Union | Chechen rebels |
| 1932 | 1933 | Two-Liu War Part of the Warlord Era | Forces of Liu Xiang Forces of Tian Songyao Allied warlords | Forces of Liu Wenhui Forces of Wang Jialie Ma Clique Allied warlords |
| 1932 | 1932 | Kirghiz rebellion | Republic of China | Kirghiz rebels |
| 1932 | 1932 | La Matanza | El Salvador | Salvadoran peasants |
| 1932 | 1932 | January 28 incident | Republic of China | Empire of Japan |
| 1932 | 1932 | Darre Khel revolt | Kingdom of Afghanistan | Rebels |
| 1932 | 1939 | Soviet–Japanese border conflicts | Soviet Union Mongolia | Japan  Manchukuo Japanese Korea |
| 1932 | 1932 | 1932 armed uprising in Mongolia | Mongolian People's Republic Soviet Union | Anti-communist rebels |
| 1932 | 1932 | Lesko uprising | Second Polish Republic | Peasant rebels |
| 1932 | 1932 | Constitutionalist Revolution | Brazil | São Paulo |
| 1932 | 1932 | Ecuadorian Civil War of 1932 | Leftist and Liberal rebels | Ecuador |
| 1932 | 1932 | Sanjurjada | Spanish Republic | Rebel Officers |
| 1932 | 1933 | Colombia–Peru War | Colombia | Peru |
| 1932 | 1935 | Chaco War | Paraguay | Bolivia |
| 1932 | 1932 | Emu War | Emus | Australia |
| 1933 | 1933 | 1933 Mohmand revolt in Afghanistan | Kingdom of Afghanistan | Mohmand rebels |
| 1933 | 1933 | Kazym rebellion | Soviet Union | Khanty rebels |
| 1933 | 1933 | Casas Viejas incident | Spanish Republic | Spanish Anarchists |
| 1933 | 1933 | De Zeven Provinciën Mutiny | The Netherlands | Dutch Navy rebels |
| 1933 | 1933 | Crazy Fakir's rebellion | Kingdom of Afghanistan | Forces of the Crazy Fakir |
| 1933 | 1936 | Actions in Inner Mongolia (1933–1936) | Empire of Japan  Manchukuo Chinese collaborators Mongol Military Government (1936) | Republic of China |
| 1933 | 1933 | Boworadet Rebellion | Thailand | Rebels under Prince Boworadet |
| 1934 | 1938 | Second Cristero War [es] | Mexican Government | Cristeros |
| 1934 | 1934 | Mandalada [ru] | Soviet Union | Rebels |
| 1934 | 1934 | 1934 Khamba rebellion | Tibet (1912–1951) Sichuan clique Chinese Communist Party | Khamba Tribesmen |
| 1934 | 1934 | Soviet invasion of Xinjiang | Republic of China | Soviet Union White Russian forces Torgut Mongols |
| 1934 | 1934 | Saudi–Yemeni War (1934) Part of the Unification of Saudi Arabia | Saudi Arabia | Yemen |
| 1934 | 1934 | Austrian Civil War | First Austrian Republic Fatherland's Front | Social Democratic Party of Austria |
| 1934 | 1934 | July Putsch | Federal State of Austria | Austrian Nazis |
| 1934 | 1934 | Events of 6 October | Spanish Republic | Generalitat of Catalonia |
| 1934 | 1934 | Asturian miners' strike of 1934 | Spanish Republic | Asturian Miners |
| 1934 | 1934 | Inamujandi Revolt | Belgium | Burundian Rebels |
| 1935 | 1935 | Narrenrevolte [de] | Nazi Germany | Rebels |
| 1935 | 1935 | Mohmand campaign of 1935 | British Empire | Mohmand tribesmen |
| 1935 | 1936 | 1935–1936 Iraqi Shia revolts | Kingdom of Iraq | Shia tribesmen |
| 1935 | 1935 | 1935 Greek coup d'état attempt | Second Hellenic Republic | Venizelist rebels |
| 1935 | 1935 | May 2 uprising | United States | Sakdalista |
| 1935 | 1935 | Goharshad Mosque rebellion | Iran | Bazaaris |
| 1935 | 1935 | 1935 Yazidi revolt | Kingdom of Iraq | Yazidis |
| 1935 | 1937 | Second Italo-Ethiopian War | Kingdom of Italy | Ethiopian Empire |
| 1935 | 1935 | Brazilian communist uprising of 1935 | Brazil | Brazilian Communist Party |
| 1936 | 1936 | Scythe Cross rebellion | Kingdom of Hungary | Hungarian National Socialist Party |
| 1936 | 1936 | February 26 incident | Empire of Japan | Righteous Army |
| 1936 | 1939 | 1936–1939 Arab revolt in Palestine Part of the Intercommunal conflict in Mandatory Palestine | United Kingdom British Army Palestine Police Force Jewish Settlement Police Jewish Supernumerary Police Haganah Special Night Squads FOSH Peulot Meyuhadot Irgun Peace Bands | Arab Higher Committee |
| 1936 | 1939 | Spanish Civil War | National faction Falange Carlists (1936–1937) CEDA (1936–1937) Alfonsists (1936–1937) Army of Africa Supported by:  Italy  Germany Portugal Foreign volunteers | Republican faction Spanish Republican Army Popular Front CNT/FAI UGT ERC Basque Army (1936–1937) Galicianist Party Supported by: International Brigades  Soviet Union (1936–1938)  Mexico France (1936) |
| 1936 | 1936 | 1936 Naval Revolt | Portugal | Revolutionary Armed Organization |
| 1936 | 1936 | 1936 Iraqi coup d'état | Bakr Sidqi's supporters | Iraqi Government |
| 1936 | 1939 | Waziristan campaign (1936–1939) | British Empire  India | Waziristan |
| 1937 | 1939 | Katawz rebellion | Kingdom of Afghanistan | Rebels |
| 1937 | 1937 | Afghan tribal revolts of 1937 | Kingdom of Afghanistan | Rebel tribes: Mohmand Shinwari Sulaimankhel |
| 1937 | 1937 | Dieu Python movement | French Indochina | Degar rebels |
| 1937 | 1938 | Dersim rebellion | Turkey | Dersim tribes |
| 1937 | 1937 | Islamic rebellion in Xinjiang (1937) | Soviet Union White Russian forces | Republic of China |
| 1937 | 1945 | Second Sino-Japanese War Part of World War II | Republic of China  Soviet Union (1937–1941; 1944–1945)  United States (1941–1945)  British Empire (1942–1945) | Empire of Japan Reorganized National Government of China  Manchukuo  Mengjiang |
| 1938 | 1938 | Integralist Uprising | Brazil | Brazilian Integralist Action |
| 1938 | 1939 | Afghan tribal revolts of 1938 | Kingdom of Afghanistan | Rebel tribes: Shinwari Suleimankhel Ghilzai Alizai |
| 1938 | 1938 | 1938 Greek coup d'état attempt | Second Hellenic Republic | Venizelist rebels |
| 1938 | 1938 | Sudeten German uprising | Sudetendeutsches Freikorps  Germany | Czechoslovakia |
| 1939 | 1939 | Hungarian invasion of Carpatho-Ukraine | Kingdom of Hungary | Carpatho-Ukraine |
| 1939 | 1939 | Slovak–Hungarian War | Kingdom of Hungary | Slovak Republic |
| 1939 | 1965 | Maquis insurgency | Nationalist Spain | Spanish Maquis |
| 1939 | 1939 | Italian invasion of Albania | Kingdom of Italy | Albanian Kingdom |
| 1939 | 1945 | World War II | Allied Powers: Soviet Union United States United Kingdom China Free France Poland Yugoslavia Greece Netherlands Belgium Luxembourg Norway Czechoslovakia Canada Australia New Zealand South Africa Philippines Ethiopia Brazil Mongolia Mexico and others... | Axis Powers: Germany Japan Italy Hungary  Romania Bulgaria Finland Thailand and others... |
| 1939 | 1939 | 1939 Ondonga uprising | South Africa | Odonga rebels |
| 1939 | 1940 | Winter War Part of World War II | Soviet Union | Finland |
| 1940 | 1944 | 1940–1944 insurgency in Chechnya Part of World War II and the Chechen–Russian conflict | Soviet Union | Provisional Popular Revolutionary Government of Chechnya-Ingushetia Supported by: Germany (1942) |
| 1940 | 1940 | Czortków uprising Part of World War II | Soviet Union | Polish rebels |
| 1940 | 1940 | Soviet occupation of the Baltic states (1940) Part of World War II | Soviet Union | Estonia Latvia Lithuania |
| 1940 | 1940 | Soviet occupation of Bessarabia and Northern Bukovina Part of World War II | Soviet Union | Romania |
| 1940 | 1941 | Franco-Thai War Part of World War II | Thailand | Vichy France  French Indochina |
| 1941 | 1941 | Legionnaires' Rebellion Part of World War II | Kingdom of Romania | Iron Guard |
| 1941 | 1941 | Anglo-Iraqi War Part of World War II | United Kingdom  British India Transjordan | Kingdom of Iraq  Nazi Germany Kingdom of Italy |
| 1941 | 1941 | June 1941 uprising in eastern Herzegovina Part of World War II | Independent State of Croatia  Italy | Serb rebels from eastern Herzegovina and Montenegro |
| 1941 | 1944 | Continuation War Part of World War II | Soviet Union  United Kingdom | Finland  Nazi Germany  Kingdom of Italy |
| 1941 | 1941 | Ecuadorian–Peruvian War | Peru | Ecuador |
| 1941 | 1941 | Uprising in Serbia (1941) Part of World War II | Government of National Salvation Nazi Germany | Partisans Chetniks |
| 1941 | 1944 | Hama Rashid revolt Part of the Kurdish separatism in Iran and World War II | Iran | Kurdish tribes |
| 1942 | 1954 | Hukbalahap Rebellion (During WWII) | Philippines United States | Hukbalahap Soviet Union Japan |
| 1943 | 1943 | 1943 Khuzestan revolt | Iran | Khuzistan rebels |
| 1943 | 1945 | 1943 Barzani revolt Part of the Iraqi–Kurdish conflict | Kingdom of Iraq Supported by: Kurdish tribesmen (1945) Zibrari Berwari Doski Elements of the ‘Muhajarin' tribe | Kurdish rebels Barzani tribesmen Allied Kurdish tribes |
| 1943 | 1943 | Woyane rebellion | Ethiopian Empire  UK | Woyanne rebels |
| 1943 | 1945 | Italian Civil War Part of World War II | Italian Resistance Kingdom of Italy Allied Powers | Italian Social Republic Nazi Germany |
| 1943 | 1944 | Jesselton revolt Part of World War II | Empire of Japan | Kinabalu rebels |
| 1943 | 1949 | Ukrainian Insurgent Army insurgency | Soviet Union People's Republic of Poland Polish Underground State Nazi Germany (1941–1944) | Ukrainian Insurgent Army |
| 1944 | 1945 | 1944–1945 Insurgency in Balochistan | United Kingdom  British India | Badinzai rebels |
| 1944 | 1946 | Anti-communist resistance in Poland (1944–1953) | People's Republic of Poland Soviet Union | Cursed soldiers |
| 1944 | 1947 | Afghan tribal revolts of 1944–1947 | Afghanistan • Allied Nuristani and Shinwari tribesmen British Empire • India | Rebel tribes: Zadran (1944–1947) Safi (until 1946) Mangal (1945) |
| 1944 | 1948 | Jewish insurgency in Mandatory Palestine | Jewish Resistance Movement Haganah Irgun Lehi | British Army Royal Navy Royal Air Force Palestine Police Force |
| 1944 | 1944 | Luluabourg and Jadotville Mutiny | Belgian Congo | Force Publique Mutineers |
| 1944 | 1944 | Masisi-Lubutu revolt | Belgian Congo | Watchtower Movement |
| 1944 | 1944 | Palm Sunday Coup Part of World War II | El Salvador | Pro-Axis rebels |
| 1944 | 1945 | Lapland War Part of World War II | Finland | Nazi Germany |
| 1944 | 1949 | Ili Rebellion | Chinese Communist Party Second East Turkestan Republic Soviet Union White Russian forces Mongolian People's Republic | Republic of China National Revolutionary Army |
| 1944 | 1960 | Goryani Insurgency | People's Republic of Bulgaria | Goryani |
| 1944 | 1956 | Guerrilla war in the Baltic states | Soviet Union | Forest Brothers |