# List of wars: 1800–1899

This article provides a list of wars occurring between 1800 and 1899. Conflicts of this era include the Napoleonic Wars in Europe, the American Civil War in North America, the Taiping Rebellion in Asia, the Paraguayan War in South America, the Zulu War in Africa, and the Australian frontier wars in Oceania.

## 1800–1810

| Start | Finish | Name of conflict | Belligerents | Belligerents |
| Start | Finish | Name of conflict | Victorious party (if applicable) | Defeated party (if applicable) |
| 1765 | 1865 | Temne War | British Empire Susu Tribes | Kingdom of Koya |
| 1798 | 1800 | Quasi-War | United States | France |
| 1801 | 1805 | Tripolitan War | United States Sweden (until 1802) Sicily | Tripolitania Morocco (1802) |
| 1801 | 1801 | War of the Oranges Part of the War of the Second Coalition | France Spain | Portugal |
| 1802 | 1804 | Fourth quarter of the Haitian Revolution | Haiti | France |
| 1802 | 1802 | Sack of Karbala | Diriyah | Ottoman Empire |
| 1802 | 1802 | Stecklikrieg | Helvetic Republic | Federalist rebels |
| 1802 | 1810 | Tedbury's War | British Empire | Australian Aborigines |
| 1803 | 1803 | Souliote War | Ottoman Empire | Souliotes |
| 1803 | 1803 | Irish Rebellion of 1803 | British Empire | Society of United Irishmen |
| 1803 | 1805 | Second Anglo-Maratha War | British East India Company | Maratha Empire |
| 1803 | 1805 | Burmese–Siamese War (1803–05) | Konbaung dynasty | Siam |
| 1803 | 1805 | First Kandyan War | British Empire | Kingdom of Kandy |
| 1792 | 1815 | Napoleonic Wars | Coalition forces: Austria Prussia Russia United Kingdom Baden Bavaria Brunswick French royalists Hanover Hungary Liechtenstein Montenegro Nassau Netherlands Ottoman Empire Papal States Persia Portugal Sardinia Saxony Sicily Spain Sweden Switzerland Tuscany Württemberg | France and allies: French Republic (until 1804) French Empire (from 1804) French clients: Bonapartist Spain Confederation of the Rhine Duchy of Warsaw Etruria Holland Italy Lucca-Piombino Naples Polish Legions Switzerland Austria Denmark–Norway Ottoman Empire Persia Prussia Russia Spain Sweden |
| 1803 | 1806 | War of the Third Coalition Part of the Napoleonic Wars | French Empire and allies:  France  Batavian Republic Italy Etruria Spain Bavaria Württemberg | Austrian Empire  Russian Empire  United Kingdom Naples and Sicily Sweden |
| 1803 | 1837 | Padri War | Adats Netherlands | Padris |
| 1804 | 1804 | 1804 Mtiuleti rebellion | Russian Empire | Georgian and Ossetian rebels |
| 1804 | 1804 | Battle of Suriname | United Kingdom | Batavian Republic |
| 1804 | 1804 | Battle of Sitka Part of the Russian colonization of the Americas | Russian Empire | Tlingit Kiks.ádi clan |
| 1804 | 1813 | First Serbian Uprising Part of the Serbian Revolution | Ottoman Empire  France | Revolutionary Serbia Volunteers from Habsburg monarchy  Russian Empire |
| 1804 | 1804 | Uprising against the Dahije Part of the First Serbian Uprising | Karađorđe | Dahije |
| 1804 | 1804 | Castle Hill convict rebellion | New South Wales | Convicts |
| 1804 | 1808 | Fulani War | Sokoto Caliphate | Hausa Kingdoms |
| 1804 | 1813 | Russo-Persian War (1804–1813) Part of the Napoleonic Wars | Russian Empire | Qajar dynasty |
| 1805 | 1811 | Egyptian Revolution Part of the Napoleonic Wars | Albanian forces of Muhammad Ali | Ottoman Empire Mamluk Forces |
| 1805 | 1805 | Janissaries' Revolt | Ottoman Empire | Janissaries |
| 1805 | 1810 | Franco-Swedish War Part of the Napoleonic Wars | France | Sweden |
| 1805 | 1805 | Haitian invasion of Santo Domingo | France Spain Captaincy General of Santo Domingo | First Empire of Haiti |
| 1806 | 1807 | War of the Fourth Coalition Part of the Napoleonic Wars | French Empire and allies:  France Confederation of the Rhine  Bavaria  Württemberg  Saxony (from Dec.1806) Polish Legions Italy Naples Etruria Holland Swiss Confederation Spain | Prussia  Russia  United Kingdom  Saxony (1806 only) Sweden Sicily |
| 1806 | 1812 | Russo-Turkish War (1806–1812) Part of the Napoleonic Wars | Russian Empire | Ottoman Empire |
| 1806 | 1807 | British invasions of the Río de la Plata | Spain Río de la Plata Viceroyalty | United Kingdom |
| 1806 | 1807 | Ashanti–Fante War | Ashanti Empire Holland | Fante Confederacy  United Kingdom |
| 1806 | 1811 | War of Christophe's Secession | Forces of Henri Christophe | Forces of Alexandre Pétion |
| 1806 | 1806 | Vellore Mutiny | British East India Company | Vellore Sepoys |
| 1807 | 1809 | Anglo-Turkish War (1807–1809) Part of the Napoleonic Wars | Ottoman Empire | United Kingdom |
| 1807 | 1807 | Alexandria expedition of 1807 | Egypt | British Empire |
| 1807 | 1807 | Tican's rebellion | Austrian Empire | Serbian Rebels |
| 1807 | 1807 | Froberg mutiny | British Empire | Navy Mutineers |
| 1807 | 1807 | Brazilian slave revolt of 1807 | Colonial Brazil | Rebels |
| 1807 | 1808 | Janissaries' Revolt | Ottoman Empire | Janissaries |
| 1807 | 1814 | Gunboat War Part of the Napoleonic Wars | United Kingdom | Denmark–Norway |
| 1807 | 1812 | Anglo-Russian War (1807–1812) Part of the Napoleonic Wars | United Kingdom | Russian Empire |
| 1807 | 1807 | Basi Revolt | Spain | Rebels |
| 1807 | 1814 | Peninsular War Part of the Napoleonic Wars | Portugal United Kingdom Spain | France |
| 1807 | 1818 | Mtetwa Empire Expansion | Mthethwa Paramountcy | Other Tribes |
| 1807 | 1842 | New Zealand Musket Wars | Māori | Māori |
| 1807 | 1808 | Ottoman coups of 1807–08 | Pro-reform factions | Anti-reform factions Janissaries |
| 1808 | 1810 | Rum Rebellion | United Kingdom | New South Wales Corps |
| 1808 | 1809 | Finnish War | Russian Empire | Sweden |
| 1808 | 1809 | Spanish reconquest of Santo Domingo Part of the Napoleonic Wars | Spain Santo Domingo  British Empire | France |
| 1808 | 1809 | Dano-Swedish War of 1808–1809 Part of the Napoleonic Wars | Denmark–Norway France | Sweden United Kingdom |
| 1808 | 1809 | Travancore Rebellion | British Empire | Travancore Kingdom of Cochin |
| 1809 | 1809 | Gurkha-Sikh War | Sikh Empire | Nepal |
| 1809 | 1809 | Persian Gulf campaign of 1809 | United Kingdom East India Company | Al Qasimi |
| 1809 | 1809 | Coup of 1809 | Men of 1809 | Sweden |
| 1809 | 1809 | War of the Fifth Coalition Part of the Napoleonic Wars | France Duchy of Warsaw Confederation of the Rhine  Kingdom of Bavaria Saxony  Württemberg Westphalia Italy Naples Swiss Confederation Holland | Austria Tyrol Hungary  United Kingdom Black Brunswickers Sardinia Sicily |
| 1809 | 1809 | 1809 Gottscheer Rebellion | France | Gottschee peasants |
| 1809 | 1809 | Tyrol Rebellion Part of the Napoleonic Wars | Kingdom of Bavaria  First French Empire Kingdom of Italy | Austrian Empire Tyrolean Rebels |
| 1809 | 1812 | Quito Revolution (1809-1812) Part of the Spanish American wars of independence | Spain | Rebels |
| 1809 | 1812 | Burmese–Siamese War (1809–1812) | Siam | Burmese Empire |
| 1809 | 1825 | Bolivian War of Independence Part of the Spanish American wars of independence | Bolivia | Spain |

## 1810–1819

| Start | Finish | Name of conflict | Belligerents | Belligerents |
| Start | Finish | Name of conflict | Victorious party (if applicable) | Defeated party (if applicable) |
| 1810 | 1818 | Argentine War of Independence Part of the Spanish American wars of independence | United Provinces of the Río de la Plata  Chile | Spain |
| 1810 | 1811 | Tecumseh's War Part of the War of 1812 | United States Chief Black Hoof | Tecumseh's Confederacy |
| 1810 | 1810 | US occupation of West Florida | United States | Spain |
| 1810 | 1820 | Punjab War | Sikh Empire | British East India Company  British Empire |
| 1810 | 1826 | Chilean War of Independence Part of the Spanish American wars of independence | Chile United Provinces of the Río de la Plata | Spain Mapuche allies |
| 1810 | 1810 | Conquest of Hawaii | Kingdom of Hawaii | Other Hawaiian Tribes |
| 1810 | 1818 | Amadu's Jihad | Forces of Seku Amadu | Bamana Empire |
| 1810 | 1821 | Mexican War of Independence Part of the Spanish American wars of independence | Mexican Army | Spain |
| 1811 | 1812 | Cambodian rebellion (1811–12) | Cambodian pro-Siamese faction Rattanakosin Kingdom (Siam) | Cambodian pro-Vietnamese faction Nguyễn dynasty (Vietnam) |
| 1811 | 1811 | Battle of Khakeekera | Bahrain Kuwait | Diriyah |
| 1811 | 1811 | 1811 German Coast uprising | United States | Rebel Slaves |
| 1811 | 1811 | Invasion of Java (1811) | British East India Company | France |
| 1811 | 1811 | Tonquin incident | United States | Tla-o-qui-aht |
| 1811 | 1812 | Fourth Xhosa War | Cape Colony | Xhosa Tribes |
| 1811 | 1811 | Ga–Fante War | Fante Confederacy Akwapim Tribes Akim Tribes | Ashanti Empire Ga Tribes  British Empire  Dutch Empire |
| 1811 | 1815 | Arakanese Uprising | Burmese Empire | Rohingya Insurgents |
| 1811 | 1811 | Battle of Las Piedras Part of the Spanish American wars of independence | Forces of José Gervasio Artigas | Spain |
| 1811 | 1812 | Cambodian Rebellion | Viet Nam Kingdom of Cambodia | Forces of Khmer Pretender Ang Snguon Siam |
| 1811 | 1811 | Paraguayan Revolt | Paraguay | Viceroyalty of Peru |
| 1811 | 1818 | Wahhabi War | Ottoman Empire | First Saudi State |
| 1811 | 1823 | Venezuelan War of Independence Part of the Spanish American wars of independence | Venezuela Gran Colombia British Empire New Granada | Spain |
| 1811 | 1826 | Peruvian War of Independence Part of the Spanish American wars of independence | Peru United Provinces of the Río de la Plata Gran Colombia  Chile British Empire | Spain |
| 1812 | 1812 | Battle of Shela | Lamu | Mombasa Pate |
| 1812 | 1812 | Hong Gyeong-Rae's Rebellion | Joseon dynasty | Forces loyal to Hong Gyeong-nae |
| 1812 | 1812 | Aponte conspiracy | Spain | Slaves |
| 1812 | 1812 | French invasion of Russia Part of the Napoleonic Wars | Russian Empire | France Duchy of Warsaw Italy Naples Confederation of the Rhine Baden  Bavaria Berg  Saxony Westphalia Spain Swiss Confederation Allies: Austria Prussia |
| 1812 | 1814 | War of the Sixth Coalition Part of the Napoleonic Wars | Original Coalition: Russian Empire Kingdom of Prussia Austrian Empire Sweden United Kingdom of Great Britain and Ireland Spain Kingdom of Portugal Sicily Kingdom of Sardinia After Battle of Leipzig: Kingdom of Saxony Kingdom of Bavaria Württemberg | France Kingdom of Italy (Napoleonic) Duchy of Warsaw Naples Until January 1814 Denmark–Norway Swiss Confederation Confederation of the Rhine (Many member states defected after Battle of Leipzig) |
| 1812 | 1815 | War of 1812 | British Empire United States  United States | British Empire United States  United States |
| 1812 | 1821 | Pemmican War | North West Company Métis | Hudson's Bay Company Selkirk's settlers |
| 1813 | 1813 | Eight Trigrams uprising of 1813 | Qing dynasty | Eight Trigram Sect |
| 1813 | 1837 | Afghan-Sikh Wars | Sikh Empire | Durrani Empire Emirate of Afghanistan |
| 1813 | 1814 | Creek War | United States Lower Creeks Cherokees Choctaws | "Red Sticks" (Creek Indians) |
| 1813 | 1813 | Peoria War | United States | Kickapoo Nation Potawatomi Nation |
| 1814 | 1814 | Brazilian slave revolt of 1814 | Colonial Brazil | Rebels |
| 1814 | 1814 | Swedish–Norwegian War Part of the Napoleonic Wars | Sweden | Norway |
| 1814 | 1816 | Anglo-Nepalese War | British East India Company Forces of the Chogyal | Nepal |
| 1814 | 1816 | Ashanti–Akim–Akwapim War | Ashanti Empire | Akwapim Tribes Akim Tribes |
| 1814 | 1814 | Hadži Prodan's Revolt Part of the Serbian Revolution | Ottoman Empire | Forces of Hadži Prodan Gligorijevic |
| 1814 | 1880 | Argentine Civil Wars | Federalists Blancos | Unitarios Colorados |
| 1815 | 1815 | Slachter's Nek Rebellion | United Kingdom | Boer Rebels |
| 1815 | 1815 | Second Barbary War | United States  United Kingdom of the Netherlands  United Kingdom (from 1815) | Barbary States Ottoman Empire |
| 1815 | 1815 | Second Kandyan War | British Empire | Kingdom of Kandy |
| 1815 | 1815 | Hundred Days War of the Seventh Coalition | United Kingdom  Kingdom of Prussia Kingdom of France Kingdom of Hanover German Confederation  Austrian Empire  Russian Empire  Sweden  Netherlands Spain Kingdom of Portugal Kingdom of Sardinia  Kingdom of the Two Sicilies Grand Duchy of Tuscany | First French Empire Napoleonic Kingdom of Naples |
| 1815 | 1815 | Neapolitan War Part of the Hundred Days | Austrian Empire  Kingdom of the Two Sicilies Grand Duchy of Tuscany  United Kingdom | Napoleonic Kingdom of Naples |
| 1815 | 1815 | Temne-Susu War | Kingdom of Koya | Susu Tribes |
| 1815 | 1816 | Spanish reconquest of New Granada Part of the Spanish American wars of independence | Spanish Empire | United Provinces of New Granada |
| 1815 | 1817 | Second Serbian Uprising Part of the Serbian Revolution | Principality of Serbia | Ottoman Empire |
| 1816 | 1816 | Bussa's Rebellion | British Empire | Barbadian slaves |
| 1816 | 1816 | Bombardment of Algiers | British Empire | Ottoman Empire Algiers |
| 1816 | 1820 | Luso-Brazilian conquest of the Banda Oriental | United Kingdom of Portugal, Brazil and the Algarves | Federal League |
| 1816 | 1857 | Afaqi Khoja revolts | Qing dynasty | Aq Taghlik Khojas Supported by: Kokand Khanate |
| 1817 | 1817 | Pernambucan Revolt | United Kingdom of Portugal, Brazil and the Algarves | Pernambuco rebels |
| 1817 | 1817 | Pentrich rising | British Empire | Tax resisters |
| 1817 | 1818 | Third Anglo-Maratha War | British East India Company | Maratha Confederacy |
| 1817 | 1818 | First Seminole War Part of the Seminole Wars | United States | Seminole Tribes |
| 1817 | 1818 | Uva Rebellion | British Empire | Kingdom of Kandy |
| 1817 | 1819 | Ndwandwe–Zulu War | Forces of Shaka Zulu | Forces of King Zwide |
| 1817 | 1826 | Burmese invasions of Assam | Burmese Empire | Kingdom of Ahom Kingdom of Manipur |
| 1817 | 1864 | Caucasian War | Russian Empire | Avar Khanate Circassia Kingdom of Kartli-Kakheti Caucasian Imamate Other Tribes of the North Caucasus |
| 1818 | 1818 | Akure–Benin War | Benin Kingdom | Akure Kingdom |
| 1818 | 1819 | Fifth Xhosa War | British Empire Khoikhoi Forces | Forces of Xhosa Chief Maqana Nxele |
| 1818 | 1828 | Zulu wars of conquest | Zulu Kingdom | Other remnants of the Mtetwa Paramountcy |
| 1819 | 1820 | Bolívar's campaign to liberate New Granada Part of the Venezuelan War of Independence | United Provinces of New Granada | Spain |
| 1819 | 1819 | Chuguev uprising | Russian Empire | Chuguev Regiment |

## 1820–1829

| Start | Finish | Name of conflict | Belligerents | Belligerents |
| Start | Finish | Name of conflict | Victorious party (if applicable) | Defeated party (if applicable) |
| 1820 | 1820 | Revolution of 1820 | Kingdom of the Two Sicilies | Carbonari |
| 1820 | 1820 | Cambodian rebellion (1820) | Cambodian pro-Siamese faction Rattanakosin Kingdom (Siam) | Khmer anti-Vietnamese rebels |
| 1820 | 1824 | Turco-Egyptian conquest of Sudan (1820-1824) | Egypt Eyalet | Funj Sultanate Sultanate of Darfur Shaigiya tribe |
| 1820 | 1821 | Bani Bu Ali expedition | Omani Empire East India Company | Bani Bu Ali tribe |
| 1820 | 1822 | Ali Pasha's Revolt | Ottoman Empire | Ali Pasha of Yanina |
| 1820 | 1822 | Ecuadorian War of Independence Part of the Spanish American wars of independence | Free Province of Guayaquil | Kingdom of Spain |
| 1820 | 1823 | Trienio Liberal | Kingdom of Spain Kingdom of France | Partisans of the Cortes |
| 1820 | 1875 | Texas–Indian wars | Spain Mexico Republic of Texas United States | Comanche |
| 1821 | 1821 | Siamese invasion of Kedah | Rattanakosin Kingdom | Kedah Sultanate |
| 1821 | 1825 | Ijebu and Ife war against Owu | Ijebu Ife | Owu Kingdom |
| 1821 | 1821 | Wallachian uprising (1821) | Ottoman Empire | Principality of Wallachia |
| 1821 | 1821 | Niš Rebellion (1821) | Ottoman Empire | Niš Secret Organization |
| 1821 | 1823 | Ottoman–Persian War (1821–23) | Qajar Persia | Ottoman Empire |
| 1821 | 1829 | Greek War of Independence | Greek revolutionaries  Britain United States of the Ionian Islands Kingdom of France (1827 only) Russian Empire (1827 only) | Ottoman Empire Egypt Eyalet Beylik of Tunis (naval battles) |
| 1821 | 1837 | Padri War | Dutch Empire | Indigenous population of West Sumatra |
| 1821 | 1829 | Spanish attempts to reconquer Mexico | Mexico | Spanish Empire |
| 1821 | 1870 | Comanche–Mexico Wars | Comanche Kiowa | Mexico |
| 1821 | 1821 | 1821 Alghero revolt | Kingdom of Sardinia | Rebels of Alghero |
| 1822 | 1823 | Mexican annexation of El Salvador | First Mexican Empire Guatemala | El Salvador |
| 1822 | 1823 | Casa Mata Plan Revolution | Mexican Republicans | First Mexican Empire |
| 1822 | 1825 | Brazilian War of Independence | Empire of Brazil | Kingdom of Portugal |
| 1822 | 1844 | Haitian occupation of Santo Domingo | Republic of Spanish Haiti | Haiti |
| 1823 | 1823 | Hundred Thousand Sons of Saint Louis | France Armée de la Foi | Partisans of the Cortes |
| 1823 | 1823 | Ochomogo War Part of the Mexican annexation of Central America | Republicans | Imperialists |
| 1823 | 1823 | Demerara rebellion of 1823 | British Empire | Demerara slaves |
| 1823 | 1823 | Expedition to the West Coast of Borneo | Royal Netherlands East Company | Chinese Indonesian rebels |
| 1823 | 1823 | Revolt of Querétaro | Provisional Government of Mexico | Mexican Empire |
| 1823 | 1831 | First Anglo-Ashanti War | Ashanti Empire | British Empire |
| 1823 | 1824 | First Greek civil war | Primates and supporters of the Government | Military leaders and supporters of Philiki Etaireia |
| 1824 | 1824 | Chumash revolt of 1824 | | |
| 1824 | 1824 | Bathurst War | British Empire | Wiradjuri |
| 1824 | 1824 | Confederation of the Equator Revolt | Empire of Brazil | Confederation of the Equator |
| 1824 | 1824 | First Bone War | Dutch Empire | Sulawesi Rebels |
| 1824 | 1824 | April Revolt | Absolutists | Liberals |
| 1824 | 1825 | Second Greek civil war | Roumeliotes and Islanders (Hydra) | Moreotes |
| 1824 | 1826 | First Anglo-Burmese War | Britain British East India Company Native Tribes | Burmese Empire |
| 1825 | 1841 | Uprising in the Yamal tundra [ru] | Russian Empire | Indigenous rebels |
| 1825 | 1825 | Second Bone War | Dutch Empire | Sulawesi Rebels |
| 1825 | 1825 | Battle of Tripoli (1825) | Kingdom of Sardinia | Tripolitania |
| 1825 | 1828 | Aegean Sea Anti-Piracy Operations of the United States | United States | Greek Pirates |
| 1825 | 1825 | Decembrist revolt | Russian Empire | Decembrists |
| 1825 | 1828 | Cisplatine War | Empire of Brazil | United Provinces of the Río de la PlataThirty-Three Orientals |
| 1825 | 1830 | Java War | Dutch Empire Pro-Netherlands Javanese | Rebellion forces of Prince Diponegoro |
| 1825 | 1825 | Franco-Trarzan War of 1825 | France Comte de Villèle | Forces of Muhammad al Habib |
| 1826 | 1837 | Kurdish revolt of 1826–1837 | Ottoman Empire | Kurdish rebels |
| 1826 | 1829 | First Central American Civil War | Liberals | Conservatives |
| 1826 | 1828 | Russo-Persian War (1826–28) Part of the Russo-Persian Wars | Russian Empire | Persian Empire |
| 1826 | 1826 | Chernigov Regiment revolt | Russian Empire | Decembrists |
| 1826 | 1831 | Sikh–Wahhabi War | Sikh Empire | Mujahideen Kingdom of Amb Peshawari Sardars Pashtun tribes |
| 1826 | 1828 | Siamese-Lao War | Siam | Anouvong King of Vientiane |
| 1827 | 1827 | 1827 Honduran coup d'état | State of Honduras | Honduran Conservatives |
| 1827 | 1827 | Winnebago War | United States Local militia | Winnebago |
| 1828 | 1828 | Peruvian–Bolivian War of 1828 | Peru | Bolivia |
| 1828 | 1829 | Gran Colombia–Peru War | Gran Colombia | Peru |
| 1828 | 1828 | Irish and German Mercenary Soldiers' Revolt | Empire of Brazil | Irish and German mercenaries |
| 1828 | 1828 | Bombardment of Tripoli (1828) | Tripolitania | Kingdom of the Two Sicilies |
| 1828 | 1834 | Liberal Wars | Liberal forces of Queen Mary II  United Kingdom Spain | Absolutist forces of King Miguel |
| 1828 | 1829 | Russo-Turkish War (1828–29) | Russian Empire | Ottoman Empire |
| 1828 | 1832 | Black War | British Empire | Tasmanian Aborigines |
| 1829 | 1830 | Austrian expedition against Morocco (1829) | Austrian Empire | Morocco |
| 1829 | 1830 | Chilean Civil War of 1829–30 | Pelucones Military of Chile Chilean Army Chilean Navy | Pipiolos |
| 1829 | 1833 | Anglo-Khasi War | British Empire | Khasi people |

## 1830–1839

| Start | Finish | Name of conflict | Belligerents | Belligerents |
| Start | Finish | Name of conflict | Victorious party (if applicable) | Defeated party (if applicable) |
| 1830 | 1830 | Freiämtersturm | Freie Ämter militia | Canton of Aargau |
| 1830 | 1830 | July Revolution French Revolution of 1830 | House of Orléans | House of Bourbon |
| 1830 | 1831 | November Uprising | Russian Empire | Polish insurgents |
| 1830 | 1831 | Belgian Revolution | Southern Provinces of the Netherlands | United Kingdom of the Netherlands |
| 1830 | 1847 | French conquest of Algeria | France | Ottoman Empire Algiers |
| 1830 | 1850 | Port Phillip District Wars | British Empire | Australian Aborigines |
| 1831 | 1831 | Dutch expedition on the west coast of Sumatra | Dutch Empire | Sumatran Rebels |
| 1831 | 1831 | Merthyr Rising | British Empire | Coal Miners |
| 1831 | 1831 | Turner's Rebellion | United States | Slave Rebels |
| 1831 | 1833 | Kol uprising | British Empire | Adivasi Rebels |
| 1831 | 1834 | Siamese–Vietnamese War (1831–34) | Vietnam Vietnamese protectorate of Cambodia | Siam |
| 1831 | 1832 | Baptist War | British Empire | Rebel slaves |
| 1831 | 1832 | Naning War | East India Company | Malay rebels |
| 1831 | 1833 | Egyptian–Ottoman War (1831–33) | Egypt | Ottoman Empire  Russian Empire (from 1833) |
| 1831 | 1833 | Yagan Resistance | British Empire | Yagan |
| 1831 | 1833 | Bosnian Uprising (1831–32) | Ottoman Empire | Bosnian ayans |
| 1832 | 1832 | Black Hawk War | United States Ho-Chunk Menominee Potawatomi | Black Hawk's British Band: Sauk Fox Kickapoo |
| 1832 | 1832 | June Rebellion | France | French Republicans |
| 1833 | 1834 | Desert Campaign (1833–34) | Argentina | Mapuche rebels |
| 1833 | 1835 | Lê Văn Khôi revolt | Nguyễn dynasty | Lê Văn Khôi rebels |
| 1833 | 1839 | Albanian Revolts of 1833–39 | Ottoman Empire | Albanian rebels |
| 1833 | 1840 | First Carlist War | Liberals and Allies: Forces of Queen Isabella II of Spain  British Empire  France Forces of Queen Mary II of Portugal | Carlists: Forces of Infante Carlos of Spain Forces of King Miguel of Portugal |
| 1834 | 1834 | Peruvian civil war of 1834 | Government of Peru | Revolutionaries |
| 1834 | 1834 | Coorg War | | |
| 1834 | 1834 | Priest Jovica's Rebellion | Ottoman Empire | Christian peasants |
| 1834 | 1834 | Peasants' Revolt of 1834 (Palestine) | Egypt Eyalet | Palestinian Peasants |
| 1834 | 1834 | Battle of Pinjarra | British Empire | Pinjarup |
| 1834 | 1836 | Sixth Xhosa War | British Empire Free Khoikhoi | Xhosa Tribes |
| 1835 | 1858 | 1835–58 revolt in Ottoman Tripolitania | Ottoman Empire | Libyan rebels |
| 1835 | 1836 | Revolution of the Reforms | State of Venezuela | Reformists |
| 1835 | 1836 | Salaverry-Santa Cruz War | Supporters of Luis José de Orbegoso and Andrés de Santa Cruz | Supporters of Felipe Santiago Salaverry |
| 1835 | 1835 | League War | San José | Alajuela Cartago Cartago |
| 1835 | 1835 | Malê Revolt | Empire of Brazil | Rebel slaves |
| 1835 | 1835 | Zacatecas Rebellion | Mexico | Zacatecan rebels |
| 1835 | 1836 | Texas Revolution | Republic of Texas | Mexico |
| 1835 | 1842 | Second Seminole War Part of the Seminole Wars | United States | Seminole Tribes |
| 1835 | 1845 | Ragamuffin War | Empire of Brazil | Riograndense Republic Juliana Republic |
| 1835 | 1840 | Cabanagem | Empire of Brazil | Indians Cabanos |
| 1836 | 1836 | Posavina rebellion (1836) | Ottoman Empire | Bosnian nobility |
| 1836 | 1836 | Belogradchik rebellion (1836) | Ottoman Empire | Serbian peasants |
| 1836 | 1836 | Berkovitsa rebellion (1836) | Ottoman Empire | Bulgarian peasants |
| 1836 | 1836 | Pirot rebellion | Ottoman Empire | Orthodox peasants |
| 1836 | 1839 | War of the Confederation | Chile North Peru Argentine Confederation | Peru-Bolivian Confederation |
| 1837 | 1838 | Siege of Herat (1838) Afghan-Persian War | Emirate of Afghanistan | Qajar Iran |
| 1837 | 1837 | Revolt of 1837 (New Mexico) | Mexico | Cantón |
| 1837 | 1838 | Sabinada | Empire of Brazil | Bahia Republic |
| 1837 | 1838 | Lower Canada Rebellion Part of the Rebellions of 1837 | United Kingdom British North America | Patriote movement American Volunteers |
| 1837 | 1838 | Upper Canada Rebellion Part of the Rebellions of 1837 | United Kingdom British North America | Hunters' Lodges Republic of Canada |
| 1837 | 1839 | Dutch–Ahanta War | Dutch Empire | Ahanta Kingdom |
| 1837 | 1847 | Kenesary's Rebellion | Russian Empire | Kazakh Khanate |
| 1838 | 1840 | Muhammad Ali's Yemeni Expedition Part of the Yemeni–Ottoman Conflicts | Ottoman Empire | Zaidis |
| 1838 | 1838 | Battle of Blood River | Voortrekkers | Zulu kingdom |
| 1838 | 1838 | Mormon War | Non-Mormon Missourians | Latter Day Saint movement |
| 1838 | 1839 | Balaiada | Empire of Brazil | Balaios African slaves |
| 1838 | 1839 | Pastry War | France | Mexico |
| 1839 | 1839 | Newport Rising | British Empire | Chartists |
| 1839 | 1839 | Züriputsch | Zürich | Conservative Putschists |
| 1839 | 1841 | Egyptian–Ottoman War (1839–41) | British Empire Austrian Empire Russian Empire Kingdom of Prussia Ottoman Empire | Egypt France Spain |
| 1839 | 1840 | Khivan campaign of 1839 | Khanate of Khiva | Russian Empire |
| 1839 | 1841 | War of the Supremes | | |
| 1838 | 1842 | First Anglo-Afghan War | Emirate of Afghanistan | British Empire British East India Company |
| 1839 | 1842 | First Opium War | British Empire | Qing Empire of China |
| 1839 | 1847 | Albanian Revolt of 1847 | Ottoman Empire | Albanian rebels |
| 1839 | 1851 | Uruguayan Civil War | Colorados Argentine Unitarians  France Riograndense Republic  British Empire  Empire of Brazil Italian Legion | Blancos Federalists  Argentine Confederation |
| 1840 | 1841 | Cambodian rebellion (1840) | Khmer anti-Vietnamese rebels Support: Rattanakosin Kingdom (Siam) | Nguyễn dynasty (Vietnam) |
| 1840s | 1860s | Eumerella Wars | British Empire | Gunditjmara people |

## 1840–1849

| Start | Finish | Name of conflict | Belligerents | Belligerents |
| Start | Finish | Name of conflict | Victorious party (if applicable) | Defeated party (if applicable) |
| 1841 | 1841 | Niš Rebellion (1841) | Ottoman Empire | Christian rebels |
| 1841 | 1841 | 1841 rebellion in Guria | Russian Empire | Guria Peasants |
| 1841 | 1845 | Siamese–Vietnamese War (1841–45) | Vietnam Cambodia protectorates loyal to King Ang Duong |
| 1841 | 1842 | Sino-Sikh War | China | Sikh Empire |
| 1842 | 1847 | Kurdish revolt of 1842–1847 | Ottoman Empire | Emirate of Botan |
| 1842 | 1842 | Shoorcha rebellion | Russian Empire | Chuvash Peasants Tatar Peasants Mari Peasants |
| 1842 | 1868 | Russian Conquest of Bukhara | Russian Empire | Emirate of Bukhara |
| 1842 | 1843 | Mier expedition | Mexico | Texas |
| 1843 | 1844 | Peruvian civil war of 1843–1844 | Revolutionaries | Peruvian government |
| 1843 | 1844 | Albanian Revolt of 1843–44 | Ottoman Empire | Albanian rebels |
| 1843 | 1843 | Wairau Affray Part of the New Zealand Wars | Ngāti Toa | British Settlers |
| 1843 | 1843 | Battle of One Tree Hill | British Settlers | Jagera people |
| 1844 | 1856 | Dominican War of Independence | Dominican Republic | Haiti |
| 1844 | 1844 | Franco-Moroccan War | France | Morocco |
| 1844 | 1847 | Franco-Tahitian War | France Tahitian allies | Tahiti Huahine Raiatea Bora Bora and Tahaa |
| 1844 | 1845 | Malespín's War | El Salvador Honduras | Nicaragua |
| 1845 | 1845 | Albanian Revolt of 1845 | Ottoman Empire | Albanian rebels |
| 1845 | 1846 | First Anglo-Sikh War | British East India Company | Sikh Empire |
| 1845 | 1846 | Flagstaff War Northern War Part of the New Zealand Wars | Ngāpuhi Iwi | British Empire Forces of Tamati Waka Nene |
| 1846 | 1847 | Peasant uprising of 1846 [es] | Venezuela | Federal rebels |
| 1846 | 1846 | Revolution of Maria da Fonte | Portuguese Empire | Tax Resisters |
| 1846 | 1846 | Hutt Valley Campaign Part of the New Zealand Wars | British Empire British Settlers Te Āti Awa | Ngāti Toa |
| 1846 | 1846 | Kraków uprising | Austrian Empire | Polish independence movement |
| 1846 | 1846 | Galician slaughter | Austrian Empire | Polish peasants |
| 1846 | 1846 | Dutch intervention in Northern Bali (1846) | Netherlands | Bali |
| 1846 | 1846 | Revolt of the Faitiões | Portuguese Empire | Faitiões |
| 1846 | 1847 | Patuleia | Cartistas | Septembrists Miguelists |
| 1846 | 1847 | Seventh Xhosa War | British Empire | Xhosa Tribes |
| 1846 | 1849 | Second Carlist War War of the Madrugadores | Forces of Queen Isabella II of Spain | Carlists |
| 1846 | 1848 | Mexican–American War | United States | Mexico |
| 1846 | 1848 | Wanganui Campaign Part of the New Zealand Wars | British Empire British Settlers Māori Kupapa | Māori Iwis |
| 1847 | 1847 | Sonderbund War | Swiss Confederation | Sonderbund |
| 1847 | 1850 | Sierra Gorda Rebellion | Mexico | Tax Resisters |
| 1847 | 1855 | Cayuse War | United States | Cayuse |
| 1847 | 1933 | Caste War of Yucatán | Mexico | Maya Free State |
| 1847 | 1847 | Operations against the Baizai (1847) | British Empire | Baizai Tribesmen |
| 1848 | 1849 | Venezuelan Civil War of 1848–1849 [es] | State of Venezuela | Rebels |
| 1848 | 1849 | Revolutions of 1848 in the Italian states | Austrian Empire Kingdom of Two Sicilies Papal States | Kingdom of Sicily Provisional Government of Milan Republic of San Marco Roman Republic Central Italy Rebels Supported by: Kingdom of Sardinia |
| 1848 | 1848 | Greater Poland Uprising (1848) | Kingdom of Prussia | Polish rebels |
| 1848 | 1848 | French Revolution of 1848 | French Republic | July Monarchy |
| 1848 | 1849 | Revolutions of 1848 in the German states | German Confederation Austrian Empire Baden Prussia Kingdom of Saxony  Kingdom of Bavaria | German Rebels |
| 1848 | 1849 | Baden Revolution Part of the Revolutions of 1848 in the German states | Baden | Freischar |
| 1849 | 1849 | May Uprising in Dresden Part of the Revolutions of 1848 in the German states | Prussia Kingdom of Saxony | Freischar |
| 1849 | 1849 | Palatine uprising Part of the Revolutions of 1848 in the German states | Kingdom of Bavaria | Freischar |
| 1848 | 1849 | Revolutions of 1848 in the Habsburg areas | | |
| 1848 | 1848 | Wallachian Revolution of 1848 | Ottoman Empire Russian Empire | Wallachia |
| 1848 | 1849 | Sicilian revolution of independence of 1848 | Kingdom of the Two Sicilies Supported by: Kingdom of Spain | Kingdom of Sicily Supported by: Congress Poland |
| 1848 | 1848 | Dutch intervention in Northern Bali (1848) | Netherlands | Bali |
| 1848 | 1848 | Matale rebellion | British Empire | Kandian Peasants |
| 1848 | 1849 | First Italian War of Independence | Austrian Empire | Kingdom of Sardinia Grand Duchy of Tuscany Papal States Kingdom of the Two Sicilies |
| 1848 | 1849 | Second Anglo-Sikh War | British Empire British East India Company | Sikh Empire |
| 1848 | 1849 | Hungarian War of Independence | Austrian Empire Russian Empire | Hungary |
| 1848 | 1849 | Serb Uprising of 1848–49 | Serbs (Austrian Empire) Serbian volunteers Austrian Empire | Hungary |
| 1848 | 1849 | Praieira revolt | Empire of Brazil | Praieiros |
| 1848 | 1849 | Slovak Uprising of 1848–49 | Slovak National Council | Kingdom of Hungary |
| 1848 | 1851 | First Schleswig War The Three Years' War | Denmark | Schleswig-Holstein  Prussia Kingdom of Saxony |
| 1849 | 1850 | Dutch intervention in Bali (1849) | Netherlands Lombok | Buleleng Jembrana Klungkung |
| 1849 | 1849 | Yemeni Expedition of 1849 Part of the Yemeni–Ottoman Conflicts | Zaidis | Ottoman Empire |
| 1849 | 1855 | Burmese–Siamese War (1849–55) | Burma | Siam |
| 1849 | 1924 | Apache Wars | United States (1849–1924) Confederate States of America (1861–1865) | Apacheria: Chiricahua Apache Jicarilla Apache Mescalero Apache Lipan Apache Western Apache Plains Apache Apache Allies: Ute Yavapai Comanche Cheyenne Kiowa Yuma Mohave |
| 1849 | 1849 | Operations against the Baizai (1849) | British Empire | Baizai Tribesmen |

## 1850–1859

| Start | Finish | Name of conflict | Belligerents | Belligerents |
| Start | Finish | Name of conflict | Victorious party (if applicable) | Defeated party (if applicable) |
| 1850 | 1856 | Soninke-Marabout War (1850–1856) | British Empire French Empire | Marabout confederacy Kingdom of the Kombo (Soninke) |
| 1850 | 1864 | Taiping Rebellion | China  British Empire  French Empire | Taiping Heavenly Kingdom |
| 1850 | 1853 | Eighth Xhosa War | British Empire | Xhosa Tribes Khoikhoi Tribes Native Kafir Police |
| 1851 | 1851 | 1851 Chilean Revolution | Chile | Liberal rebels |
| 1851 | 1851 | Bombardment of Salé | France | Morocco |
| 1851 | 1851 | 1851 French coup d'état | French Second Republic under Louis-Napoléon Bonaparte | Republicans |
| 1851 | 1852 | Platine War | Empire of Brazil  Uruguay Entre Ríos Corrientes Santa Fe | Argentine Confederation Blancos |
| 1851 | 1855 | Palembang Highlands Expeditions | Dutch Empire | Palembangese Rebels |
| 1851 | 1865 | California Indian Wars | United States | Miwok Yokuts Cahuilla Cupeno Quechan Yurok Karuk Tolowa Nomlaki Chimariko Wintun Hupa Tsnungwe Wiyot Whilkut Yuki |
| 1851 | 1868 | Nian Rebellion | Qing dynasty | Nien militia |
| 1852 | 1852 | Kautokeino rebellion | Sweden-Norway | Sami rebels |
| 1852 | 1852 | Second Anglo-Burmese War | British Empire | Burma |
| 1852 | 1853 | Montenegrin–Ottoman War (1852–53) | Montenegro | Ottoman Empire |
| 1852 | 1862 | Herzegovina Uprising (1852–62) | Ottoman Empire | Serbian rebels |
| 1853 | 1854 | Rebellion of Barquisimeto [es] | State of Venezuela | Rebels |
| 1853 | 1856 | Crimean War | Ottoman Empire French Empire (from 1854) Britain (from 1854) Kingdom of Sardinia (from 1855) Caucasian Imamate (until 1855) Circassia Abkhazian insurgents (from 1855) Egypt Eyalet Beylik of Tunis | Russian Empire Bulgarian volunteers Principality of Mingrelia (vassal) Kurdish rebels Kingdom of Greece (until 1854) |
| 1854 | 1854 | 1854 Macedonian rebellion | Ottoman Empire | Macedonian rebels |
| 1854 | 1855 | Expedition against the Chinese in Montrado | Netherlands | Pro-Chinese Indonesian rebels Chinese volunteers Supported by: China |
| 1854 | 1854 | Epirus Revolt of 1854 | Ottoman Empire | Greek rebels |
| 1854 | 1857 | Revolution of Ayutla | Mexican rebels | Santa Anna dictatorship |
| 1854 | 1873 | Miao Rebellion (1854–73) | China | Miao people |
| 1854 | 1860 | French conquest of Senegal | French Empire | Kingdom of Waalo Toucouleur Empire |
| 1854 | 1856 | Red Turban Rebellion (1854–56) | Qing Empire of China | Tiandihui |
| 1854 | 1861 | Bleeding Kansas | Anti-slavery settlers | Pro-slavery settlers |
| 1855 | 1855 | Kurdish revolt of 1855 | Ottoman Empire Supported by:  French Empire  British Empire | Kurdish rebels |
| 1855 | 1855 | First Fiji Expedition | United States | Fiji |
| 1855 | 1856 | Nepalese–Tibetan War | Kingdom of Nepal | Tibet |
| 1855 | 1856 | Santhal rebellion | British Raj Zamindars | Santal rebels |
| 1855 | 1858 | Yakima War | United States | Yakama |
| 1855 | 1855 | Rogue River Wars | United States | Rogue River |
| 1855 | 1855 | Battle of Ash Hollow | United States | Brulé Sioux |
| 1855 | 1856 | Puget Sound War | United States | Nisqually Muckleshoot Puyallup Klickitat Haida Tlingit |
| 1855 | 1858 | Third Seminole War part of the Seminole Wars | United States | Seminole Tribes |
| 1855 | 1864 | Nias Expedition | Dutch Empire | Nias Rebels |
| 1855 | 1867 | Punti-Hakka Clan Wars | Punti | Hakka |
| 1856 | 1857 | Peruvian civil war of 1856–1858 | | |
| 1856 | 1857 | Filibuster War | Allied Central American Army (Ejército Aliado Centroamericano)  Costa Rica  Honduras Guatemala  El Salvador  Nicaragua Legitimistas (conservative party) Democráticos (liberal party)  United States (naval support) | Filibusters |
| 1856 | 1857 | Khost rebellion (1856–1857) | Emirate of Afghanistan | Khostwal and Waziri tribesmen |
| 1856 | 1857 | Campaign of 1856–57 | Costa Rica Guatemala  El Salvador  Honduras Rebel Forces of Patricio Rivas | Republic of Sonora Nicaragua |
| 1856 | 1856 | Battle of Tres Forcas | Morocco | Prussia |
| 1856 | 1860 | Second Opium War Arrow War | United Kingdom  French Empire  United States (1856 and 1859 only) | Qing Empire of China |
| 1856 | 1857 | Anglo-Persian War | British Empire East India Company Afghanistan | Persia |
| 1856 | 1873 | Panthay Rebellion Du Wenxiu Rebellion | Qing Empire of China | Pingnan Guo |
| 1856 | 1857 | 1857 Cheyenne Expedition | United States | Cheyenne |
| 1857 | 1858 | Indian Rebellion of 1857 India's First War of Independence | British Empire British East India Company Nepal Jammu and Kashmir 20 Princely states | Sepoys of the East India Company Mughal Empire Awadh Jhansi 7 Princely states |
| 1857 | 1858 | Utah War | United States | State of Deseret Utah Territory Nauvoo Legion |
| 1857 | 1860 | Ecuadorian–Peruvian War (1857–1860) | Peru | Ecuador |
| 1857 | 1861 | Reform War | Liberals United States | Conservatives |
| 1857 | 1861 | Cibaenian Revolution | Dominican Republic Liberals Supported by: Conservatives Kingdom of Spain | Revolutionary Government of Cibao |
| 1857 | 1863 | Pahang Civil War | Wan Ahmad loyalists Terengganu Sultanate Rattanakosin Kingdom | Tun Mutahir loyalists Johor United Kingdom |
| 1858 | 1858 | March Revolution (Venezuela) | | |
| 1858 | 1858 | Mahtra War | Russian Empire | Estonian peasants |
| 1858 | 1858 | Coeur d'Alene War | United States | Spokane Coeur d'Alene Paloos Northern Paiute |
| 1858 | 1858 | Fraser Canyon War | United States British Empire | Nlaka'pamux |
| 1858 | 1858 | Pecija's First Revolt | Ottoman Empire | Serbian peasants |
| 1858 | 1862 | Cochinchina Campaign | French Empire Kingdom of Spain | Dai Nam |
| 1859 | 1859 | Indigo revolt | British Empire | Bengali Peasants |
| 1859 | 1859 | Second Fiji Expedition | United States | Fiji |
| 1859 | 1859 | Second Italian War of Independence | French Empire Kingdom of Sardinia | Austrian Empire |
| 1859 | 1859 | Revolution of 1859 | Chile | Liberal rebels |
| 1859 | 1872 | Pig War | United States | United Kingdom |
| 1859 | 1860 | Hispano-Moroccan War (1859–60) | Spain | Morocco |
| 1859 | 1863 | Banjarmasin War | Dutch Empire | Sultanate of Banjar |
| 1859 | 1863 | Federal War | Venezuelan Federalists | Venezuelan Conservatives |
| 1859 | 1859 | 1859 Perugia uprising | Papal States | Rebels |

## 1860–1869

| Start | Finish | Name of conflict | Belligerents | Belligerents |
| Start | Finish | Name of conflict | Victorious party (if applicable) | Defeated party (if applicable) |
| 1860 | 1860 | Expedition of the Thousand | Kingdom of Italy | Two Sicilies Papal States |
| 1860s | 1860s | Portugal–Angoche conflict | Portuguese Empire Mozambique | Angoche Sultanate |
| 1860 | 1860 | 1860 Mount Lebanon civil war | Rural Druze clans Abu Nakad clan Imad clan Abu Harmouch clan Talhuq clan Jumblatt clan Supported by al-Atrash clan Harfush clan Rural Sunni and Shia Muslim militiamen Sardiyah tribe | Maronites and allies Rural Maronite militiamen Zahalni militiamen Shihab dynasty |
| 1860 | 1860 | Paiute War | United States | Paiute tribes |
| 1860 | 1861 | First Taranaki War Second Māori War Part of New Zealand Wars | Māori iwi (tribes) Māori King Movement | Government of New Zealand British Settlers |
| 1860 | 1862 | Colombian Civil War (1860–62) | Granadine Confederation | Federal State of Cauca |
| 1860 | 1890 | Barasa–Ubaidat War | Ubaidat Tribe | Barasa Tribe |
| 1861 | 1883 | Occupation of Araucanía | Chile | Araucanía |
| 1861 | 1865 | American Civil War | United States of America | Confederate States of America |
| 1861 | 1867 | French intervention in Mexico Also known as Franco-Mexican War | United Mexican States Supported by : United States of America (entered in 1865) | Second French Empire Second Mexican Empire Austrian Empire (German and Hungarian volunteers) Belgian Foreign Legion Egyptian Sudanese Supported by : Kingdom of Spain (retired in 1862) United Kingdom (retired in 1862) |
| 1862 | 1862 | Dakota War of 1862 | United States | Dakota Sioux |
| 1862 | 1877 | Dungan Revolt (1862–77) Muslim Rebellion | Qing Empire of China | Muslims of China |
| 1863 | 1863 | Ecuadorian–Colombian War | United States of Colombia | Ecuador |
| 1863 | 1863 | Battle of Shimonoseki Straits | United States | Chōshū Domain |
| 1863 | 1863 | Bombardment of Kagoshima Anglo-Satsuma War | British Empire | Satsuma Domain |
| 1863 | 1864 | Shimonoseki Campaign | British Empire  Netherlands  United States  Second French Empire | Choshu Domain Chofu Domain Kiheitai Volunteers |
| 1863 | 1864 | Ambela campaign | British Raj | Afghan Pashtuns Yusufzai |
| 1863 | 1864 | Invasion of Waikato Part of New Zealand Wars | Government of New Zealand Māori Kupapa | Māori King Movement |
| 1863 | 1864 | Second Anglo-Ashanti War | Ashanti Empire | British Empire |
| 1863 | 1865 | Dominican Restoration War | Dominican Republic | Spain |
| 1863 | 1864 | January Uprising | Russian Empire | Polish-Lithuanian-Ruthenian Commonwealth |
| 1863 | 1865 | Colorado War | United States | Cheyenne Arapaho |
| 1863 | 1866 | Second Taranaki War Part of New Zealand Wars | British Empire | Māori of Taranaki |
| 1864 | 1864 | Kinmon Incident and First Chōshū expedition | Tokugawa Shogunate Satsuma Domain | Aizu Domain Choshu Domain Sonno joi Rebels |
| 1864 | 1864 | Second Schleswig War Second Danish-German War | German Confederation  Austrian Empire  Kingdom of Prussia | Denmark |
| 1864 | 1864 | Battle of Dybbøl Part of Second Schleswig War | Prussia | Denmark |
| 1864 | 1864 | Tauranga Campaign Part of the New Zealand Wars | Government of New Zealand British Settlers Māori Kupapa | Ngāi Te Rangi Iwi |
| 1864 | 1865 | Uruguayan War | Empire of Brazil Colorados | Uruguay |
| 1864 | 1865 | Mejba Revolt | Beylik of Tunis | Tax resisters |
| 1864 | 1865 | Mito Rebellion Kanto insurrection Part of the Japanese Civil War | Tokugawa Shogunate Mito Domain | Sonno joi Rebels of Eastern Japan |
| 1864 | 1865 | Bhutan War | British Empire | Bhutan |
| 1864 | 1865 | Conquest of Tashkent [ru] | Russian Empire | Khanate of Kokand Emirate of Bukhara |
| 1864 | 1866 | Chincha Islands War | Peru Chile Joined in 1866: Ecuador Bolivia | Spain |
| 1864 | 1868 | Snake War | United States | Shoshone, Bannock, and Paiute Tribes |
| 1864 | 1868 | Pasoemah Expedition | Dutch Empire | Sumatran Rebels |
| 1864 | 1870 | Paraguayan War | Empire of Brazil Argentina Uruguay | Paraguay |
| 1865 | 1865 | Peruvian civil war of 1865 | Revolutionaries | Government of Peru |
| 1865 | 1875 | Saudi Civil War | Supporters of Saud | Supporters of Rahman |
| 1865 | 1872 | Black Hawk War (1865–72) | United States | Ute Paiute Navajo Apache |
| 1865 | 1865 | Powder River Expedition (1865) | United States | Arapaho Sioux Cheyenne |
| 1865 | 1865 | Morant Bay rebellion | British Empire | Jamaican Rebels |
| 1865 | 1870 | Hualapai War | United States | Hualapai |
| 1865 | 1866 | Seqiti War | Basuto Kingdom  British Empire | Orange Free State |
| 1865 | 1868 | East Cape War Part of the New Zealand Wars | Government of New Zealand British Settlers Māori Kupapa | Hau-Hauist Māori |
| 1865 | 1868 | Russo-Bukharan Wars | Russian Empire | Emirate of Bukhara |
| 1865 | 1890 | Haw wars | Kingdom of Siam | Haw rebels |
| 1866 | 1866 | Second Chōshū expedition Summer War | Choshu Domain | Tokugawa Shogunate Aizu Domain |
| 1866 | 1866 | Austro-Prussian War Seven Weeks War German Civil War | Kingdom of Prussia  Kingdom of Italy Mecklenburg-Schwerin Oldenburg County of Anhalt Duchy of Brunswick Duchy of Saxe-Altenburg Saxe-Coburg and Gotha Principality of Waldeck-Pyrmont County of Schwarzburg-Sondershausen Principality of Lippe Bremen  Hamburg Lübeck | Austrian Empire  Kingdom of Saxony  Kingdom of Bavaria Grand Duchy of Baden  Kingdom of Württemberg Kingdom of Hanover Grand Duchy of Hesse Hesse-Kassel Principality of Reuss Elder Line  Duchy of Saxe-Meiningen County of Schaumburg-Lippe Nassau |
| 1866 | 1866 | Third Italian War of Independence Part of the Austro-Prussian War | Kingdom of Italy | Austrian Empire |
| 1866 | 1868 | Red Cloud's War | Lakota Tribe | United States |
| 1866 | 1866 | Baikal Insurrection | Russian Empire | Sybiracy |
| 1866 | 1869 | Cretan Revolt (1866–69) | Greek rebels | Ottoman Empire |
| 1866 | 1866 | French campaign against Korea (1866) Byeongin Western invasion | Joseon dynasty (Korea) | Second French Empire |
| 1866 | 1867 | 1867 Macedonian rebellion | Ottoman Empire | Greek revolutionaries. |
| 1867 | 1867 | Peruvian civil war of 1867 | Revolutionaries (Conservatives) | Government of Peru (Liberals) |
| 1867 | 1867 | La Genuina | | |
| 1867 | 1868 | Blue revolution (Venezuela) | | |
| 1867 | 1867 | Andaman Islands Expedition | British Empire | Onge rebels |
| 1867 | 1875 | Comanche Campaign | United States | Comanche Arapaho Kiowa Southern Cheyenne |
| 1867 | 1868 | Qatari–Bahraini War | Al Thani | Al Khalifa |
| 1867 | 1874 | Klang War Selangor Civil War | Forces of Raja Abdullah of Klang British Straits Settlements | Forces of Raja Mahadi |
| 1868 | 1874 | Six Years' War | Dominican Liberals | Dominican Conservatives |
| 1868 | 1868 | Glorious Revolution (Spain) | Spain (Liberals) | Spain (Moderados) |
| 1868 | 1868 | Grito de Lares | Spain | Puerto Rican Rebels |
| 1868 | 1869 | Tītokowaru's War Part of the New Zealand Wars | Government of New Zealand Māori Kupapa | Ngati Ruanui Iwi |
| 1868 | 1869 | Boshin War War of the Year of the Dragon Part of the Japanese Civil War | Imperial Faction: Forces of the Emperor of Japan Satsuma Domain Choshu Domain Tosa Domain Hiroshima Domain Saga Domain  British Empire | Tokugawa Shogunate Northern Alliance Republic of Ezo  Second French Empire |
| 1868 | 1868 | British Expedition to Abyssinia | British Empire | Ethiopian Empire |
| 1868 | 1872 | Te Kooti's War Part of the New Zealand Wars | Government of New Zealand British Settlers Māori Kupapa | Māori iwi |
| 1868 | 1878 | Ten Years' War Great War | Spain | Cuba |
| 1869 | 1869 | Haitian Revolution of 1869 | Forces of Nissage Saget | Forces of Sylvain Salnave |
| 1869 | 1869 | 1869 uprising in Krivošije | Serbian Rebels | Austria-Hungary |
| 1869 | 1869 | Red River Rebellion | Dominion of Canada Métis Loyalists  British Empire | Métis Forces of Louis Riel |

## 1870–1879

| Start | Finish | Name of conflict | Belligerents | Belligerents |
| Start | Finish | Name of conflict | Victorious party (if applicable) | Defeated party (if applicable) |
| 1870 | 1870 | Kirk–Holden war | United States | Ku Klux Klan |
| 1870 | 1871 | Al-Hasa Expedition | Ottoman Empire Kuwait | Nejd |
| 1870 | 1870 | Adai rebellion | Russian Empire | Aday [ru] |
| 1870 | 1871 | Franco-Prussian War | North German Confederation  Kingdom of Bavaria  Baden  Kingdom of Württemberg | Second French Empire |
| 1870 | 1872 | Revolution of the Lances | Blancos | Colorados |
| 1870 | 1900 | Sheep Wars | Cattle Ranchers | Sheepmen |
| 1870 | 1890 | Kalkadoon Wars | British colonists | Kalkadoon people |
| 1871 | 1871 | French Civil War of 1871 | French Republic | Communards |
| 1871 | 1871 | United States expedition to Korea | United States | Joseon dynasty (Korea) |
| 1871 | 1872 | Nukapu Expedition | United Kingdom | Nukapu |
| 1872 | 1873 | Dembos War (1872–1873) | Portugal | rebels |
| 1872 | 1872 | Yemeni Expedition of 1872 Part of the Yemeni–Ottoman Conflicts | Ottoman Empire | Zaidis |
| 1872 | 1876 | Third Carlist War | Kingdom of Spain (Savoy) (to 1873) First Spanish Republic (to 1874) Kingdom of Spain (Bourbon) (from 1875) | Carlists |
| 1872 | 1873 | Modoc War Lava Beds War | United States | Modoc Tribes |
| 1873 | 1873 | Khivan campaign of 1873 | Russian Empire | Khanate of Khiva |
| 1873 | 1904 | Aceh War | Dutch East Indies | Aceh Sultanate |
| 1873 | 1874 | Revolt of the Muckers | Empire of Brazil | Muckers |
| 1873 | 1874 | Pabna Peasant Uprisings | British Empire | Bengali Peasants |
| 1873 | 1874 | Third Anglo-Ashanti War | British Empire | Ashanti Empire |
| 1873 | 1888 | Colfax County War | Settlers Jicarilla Apaches | Maxwell Land Grant |
| 1873 | 1874 | Cantonal Revolution | First Spanish Republic | Spanish Cantons |
| 1874 | 1874 | Brooks–Baxter War | Republican Party | Liberal Republican Party |
| 1874 | 1874 | Saga Rebellion | Empire of Japan | Rebels of former Saga Domain |
| 1874 | 1874 | Japanese invasion of Taiwan (1874) | Empire of Japan | Qing Empire |
| 1874 | 1875 | Red River War | United States | Comanche Tribes Kiowa Tribes Southern Cheyenne Tribes Arapaho Tribes |
| 1874 | 1876 | Ethiopian–Egyptian War | Ethiopia | Egypt |
| 1875 | 1875 | Ganghwa Island incident | Empire of Japan | Joseon dynasty |
| 1875 | 1875 | Las Cuevas War | Texas Rangers | Mexican Militia |
| 1875 | 1876 | Perak War | British Empire | Malay rebels |
| 1875 | 1876 | Mason County War | Vigilantes German-American settlers | Texas Rangers |
| 1876 | 1876 | Shinpuren Rebellion | Empire of Japan | Keishintō Samurai of former the Kumamoto Domain |
| 1876 | 1876 | Razlovtsi insurrection | Ottoman Empire | Bulgarian rebels |
| 1876 | 1876 | April Uprising | Ottoman Empire | Bulgarian rebels |
| 1876 | 1876 | Akizuki Rebellion | Empire of Japan | Samurai of former the Akizuki Domain |
| 1876 | 1876 | Hagi Rebellion | Empire of Japan | Choshu Domain |
| 1876 | 1877 | Colombian Civil War of 1876 | Colombian Liberals | Colombian Conservatives |
| 1876 | 1877 | Great Sioux War of 1876 Black Hills War | United States Shoshone Tribes Crow Nation Pawnee Tribes | Arapaho Tribes Cheyenne Tribes Lakota Tribes |
| 1876 | 1878 | Qing reconquest of Xinjiang | Qing dynasty | Kashgaria |
| 1876 | 1878 | Montenegrin–Ottoman War (1876–78) Part of the Great Eastern Crisis | Montenegro | Ottoman Empire |
| 1877 | 1890 | Angoche Civil War | Followers of Farelay | 6 other claimants to the throne of the Angoche Sultanate |
| 1877 | 1877 | Nez Perce War | United States | Nez Perce |
| 1877 | 1877 | Satsuma Rebellion | Empire of Japan | Samurai of former the Satsuma Domain, Kumamoto Domain Shi-gakkō |
| 1877 | 1878 | San Elizario Salt War | United States | Mexican-Indians |
| 1877 | 1879 | Ninth Xhosa War | British Empire Mfengu Tribe | Xhosa Gcaleka Tribe |
| 1877 | 1878 | Russo-Turkish War (1877–78) | Russian Empire Serbia Romania  Montenegro Bulgarian volunteers | Ottoman Empire |
| 1877 | 1879 | Cheyenne War | United States | Cheyenne | - |
| 1877 | 1893 | Kiriji War | Ibadan Iwo Kingdom Igbajo Offa Kingdom Modakeke | Ijesha Kingdom Ekiti Confederacy Akoko Confederacy Egba Kingdom Ijebu Kingdom Ila Kingdom Ilorin Emirate Ife Kingdom |
| 1878 | 1878 | Bannock War | United States | Bannock Northern Shoshone |
| 1878 | 1878 | Austro-Hungarian campaign in Bosnia and Herzegovina in 1878 | Austria-Hungary | Bosnia Vilayet |
| 1878 | 1878 | Kanak Revolt | France | Kanaks |
| 1878 | 1878 | Lincoln County War | Ranchers Regulators | General Store Monopoly John Kinney Gang Jesse Evans Gang Seven Rivers Warriors |
| 1878 | 1878 | Kumanovo Uprising | Ottoman Empire | Serbian rebels |
| 1878 | 1878 | Epirus Revolt of 1878 | Ottoman Empire | Greek rebels |
| 1878 | 1878 | 1878 Greek Macedonian rebellion | Ottoman Empire | Greek rebels |
| 1878 | 1879 | Kresna–Razlog Uprising | Ottoman Empire | Bulgarian rebels |
| 1878 | 1880 | Second Anglo-Afghan War | British Empire | Afghanistan |
| 1878 | 1885 | Conquest of the Desert | Argentina | Araucans |
| 1878 | 1888 | Nauruan Civil War | King Aweida Loyalists  German Empire (1888) | Anti-Aweida rebels |
| 1879 | 1880 | Little War (Cuba) | Kingdom of Spain | Cuba |
| 1879 | 1879 | Jementah Civil War | Johor Sultanate | Muar |
| 1879 | 1879 | Anglo-Zulu War | British Empire Colony of Natal | Zulu Kingdom |
| 1879 | 1879 | Second Sekhukhune War | British Empire | BaPedi Kingdom |
| 1879 | 1883 | War of the Pacific | Chile | Peru Bolivia |
| 1879 | 1879 | Sheepeater Indian War | United States | Turakina |
| 1879 | 1881 | Victorio's War | United States Mexico | Apache |

## 1880–1889

| Start | Finish | Name of conflict | Belligerents | Belligerents |
| Start | Finish | Name of conflict | Victorious party (if applicable) | Defeated party (if applicable) |
| 1880 | 1881 | Basuto Gun War | Basotho Tribe | Cape Colony |
| 1880 | 1881 | Brsjak Revolt | Ottoman Empire | Christian rebels |
| 1880 | 1881 | Kurdish revolt of 1880–1881 | Ottoman Empire | Kurdish rebels |
| 1880 | 1881 | First Boer War | South African Republic | British Empire |
| 1881 | 1881 | Mapuche uprising of 1881 | Chile | Mapuche rebels |
| 1881 | 1881 | French occupation of Tunisia | France | Tunisia |
| 1881 | 1899 | Mahdist War | Egypt  British Empire  Italy  Belgium Ethiopian Empire | Mahdist Sudan |
| 1882 | 1882 | Anglo-Egyptian War | British Empire Egypt | Egyptian rebels under Arabi Pasha |
| 1882 | 1898 | Mandingo Wars | French Third Republic | Wassoulou Empire |
| 1882 | 1892 | Pleasant Valley War | Tewksbury Family Arizona Rangers | Graham and Blevins Family |
| 1883 | 1914 | Ekumeku Movement | British Empire | Ekumeku Organization |
| 1883 | 1883 | Timok Rebellion | Kingdom of Serbia | People's Radical Party |
| 1883 | 1885 | First Madagascar expedition | French Third Republic | Merina Kingdom |
| 1883 | 1886 | Tonkin Campaign | French Third Republic | Qing dynasty Black Flag Army Nguyen dynasty |
| 1884 | 1885 | Peruvian civil war of 1884–1885 | Reds  Bolivia | Blues  Chile |
| 1884 | 1884 | Chichibu Incident | Empire of Japan | Japanese peasants |
| 1884 | 1885 | Sino-French War | France Annam Protectorate | Qing dynasty of China Remnants of the Nguyen dynasty of Vietnam Black Flag Army |
| 1884 | 1885 | Mandor Rebellion | Dutch Empire | Lanfang Republic |
| 1885 | 1885 | Vose Uprising [ru] | Russian Empire | Tajik Rebels |
| 1885 | 1885 | North-West Rebellion | Canada | Provisional Government of Saskatchewan Cree–Assiniboine |
| 1885 | 1885 | Serbo-Bulgarian War | Bulgaria | Serbia |
| 1885 | 1885 | Barrios' War of Reunification | El Salvador Mexico Costa Rica Nicaragua | Guatemala Honduras |
| 1885 | 1885 | Third Anglo-Burmese War | British Empire | Third Burmese Empire |
| 1885 | 1885 | Jambi Uprising | Dutch Empire | Sumatran Rebels |
| 1886 | 1894 | Samoan Civil War | Mata'afans | Tamasese |
| 1887 | 1889 | Karonga War | African Lakes Corporation Ngonde | Swahili Henga |
| 1887 | 1895 | Hawaiian rebellions (1887–95) | Hawaiian League Republic of Hawaii  United States | Kingdom of Hawaii  United States  Empire of Japan  United Kingdom Redshirts Hawaiian Patriotic League |
| 1888 | 1893 | 1888–1893 Uprisings of Hazaras | Emirate of Afghanistan | Hazaras |
| 1888 | 1888 | Sikkim Expedition | British Empire | Tibet |
| 1888 | 1889 | Abushiri Revolt | German Empire | Rebels led by Abushiri ibn Salim al-Harthi |
| 1889 | 1890 | Ammiyya | Syrian Peasants | Syrian Sheikhs |
| 1889 | 1893 | Johnson County War | Homesteaders | Cattle Barons |

## 1890–1899

| Start | Finish | Name of conflict | Belligerents | Belligerents |
| Start | Finish | Name of conflict | Victorious party (if applicable) | Defeated party (if applicable) |
| Late 19th century | Late 19th century | Qu'aiti–Kathiri conflict over Mukalla | Qu'aiti Supported by:  British Empire | Kathiri |
| 1890s | 1890s | 1890s Hamawand revolts | Ottoman Empire | Hamawand rebels |
| 1890 | 1890 | Edi Expedition | Dutch Empire | Acehese Rebels |
| 1890 | 1890 | Revolution of the Park | Argentina | Civic Union |
| 1890 | 1890 | First Franco-Dahomean War | Kingdom of Porto-Novo French Third Republic | Kingdom of Dahomey |
| 1890 | 1916 | Castaic Range War | William Willoby Jenkins Los Angeles Rangers | William C. Chormicle |
| 1895 | 1900 | Colorado Range War | Cattle Barons | Homesteader and Rustlers |
| 1890 | 1891 | Ghost Dance War | | Sioux tribes |
| 1891 | 1891 | Battle of Mulayda | Jabal Shammar | Najd |
| 1891 | 1891 | Yemeni Rebellion of 1891 Part of the Yemeni–Ottoman Conflicts | Ottoman Empire | Zaidis |
| 1891 | 1891 | Hunza-Nagar Campaign | British Raj | Hunza Nagar |
| 1891 | 1891 | Anglo-Manipur War | British Raj | Kingdom of Manipur |
| 1891 | 1891 | Chilean Civil War of 1891 | Congressist Junta Navy of Chile | Republic of Chile Army of Chile |
| 1891 | 1892 | Tomochic Rebellion | Mexico | Rebels |
| 1891 | 1893 | Garza Revolution | Mexico United States | Garzistas |
| 1891 | 1894 | Semantan War | British Empire | Malay rebels |
| 1891 | 1907 | Bafut Wars | German Empire | Fondom of Bafut |
| 1892 | 1892 | Second Hazara Uprising | Emirate of Afghanistan | Hazaras |
| 1892 | 1894 | Second Franco-Dahomean War | France | Kingdom of Dahomey |
| 1892 | 1894 | Congo–Arab War | Congo Free State | Zanzibari Arab Slave traders |
| 1893 | 1893 | Third Hazara Uprising | Emirate of Afghanistan | Hazaras |
| 1893 | 1893 | Battle of Al Wajbah | Al Thani Allied Tribes | Ottoman Empire |
| 1893 | 1893 | Franco-Siamese conflict | France French Indochina | Siam |
| 1893 | 1908 | Macedonian Struggle | Hellenic Macedonian Committee Ethniki Etaireia (from 1894) Internal Macedonian Revolutionary Organization Supreme Macedonian-Adrianople Committee (from 1895 to 1905) Bulgarian Secret Revolutionary Brotherhood (from 1899) Boatmen of Thessaloniki (from 1900 to 1903) Serbian Chetnik Organization (from 1903) | Ottoman Empire |
| 1893 | 1893 | Conquest of the Bornu Empire | Rabih az-Zubayr's Empire | Bornu Empire |
| 1893 | 1894 | First Melillan campaign | Spain | Morocco |
| 1893 | 1894 | First Matabele War | British South Africa Company Tswana | Ndebele (Matabele) kingdom |
| 1893 | 1894 | Revolta da Armada | Brazil | Brazilian navy mutineers |
| 1893 | 1895 | Federalist Revolution | Brazil | Federalist Rebels National Party |
| 1894 | 1895 | Peruvian civil war of 1894–1895 | Rebels | Government of Peru |
| 1894 | 1894 | Malaboch War | South African Republic | Bahananwa people |
| 1894 | 1894 | 1894 Sasun rebellion | Ottoman Empire | Armenian rebels |
| 1894 | 1894 | Revolution of the 44 | Salvadoran Rebels | Salvadoran Government |
| 1894 | 1894 | Donghak Peasant Revolution | Joseon dynasty Empire of Japan | Donghak army |
| 1894 | 1895 | First Sino-Japanese War | Empire of Japan | Qing Empire |
| 1894 | 1895 | Second Madagascar expedition | France | Merina Kingdom |
| 1894 | 1897 | Jandamarra Guerilla War | British Empire | Australian aborigines |
| 1894 | 1900 | Mat Salleh Rebellion | British Empire | Malay rebels |
| 1895 | 1895 | Japanese invasion of Taiwan (1895) | Empire of Japan | Republic of Formosa Various militia forces |
| 1895 | 1896 | Dungan revolt (1895–96) | China | Muslim rebels |
| 1895 | 1896 | Zeitun Rebellion (1895–96) | Armenian rebels | Ottoman Empire |
| 1895 | 1897 | Menalamba rebellion | France | Menalamba rebels |
| 1895 | 1896 | Fourth Anglo-Ashanti War | United Kingdom | Ashanti Empire |
| 1895 | 1896 | First Italo-Ethiopian War | Ethiopia | Kingdom of Italy |
| 1895 | 1898 | Cuban War of Independence | Cuban rebels United States | Kingdom of Spain |
| 1896 | 1897 | 1896–1897 Greek Macedonian rebellion | Ottoman Empire | Rebels |
| 1896 | 1896 | Defense of Van (1896) | Ottoman Empire | Armenian rebels |
| 1896 | 1896 | Khaua-Mbandjeru Rebellion | German Empire | Mbandjeru Khaua Mbandjeru |
| 1896 | 1896 | Anglo-Zanzibar War The shortest war in history | British Empire | Zanzibar |
| 1896 | 1897 | War of Canudos | Brazil | Canudos inhabitants |
| 1896 | 1897 | Langeberg Rebellion | Cape Colony | Batlhaping rebels |
| 1896 | 1897 | Batetela Rebellion | Congo Free State | Tetela rebels |
| 1896 | 1897 | Second Matabele War | British South Africa Company | Ndebele (Matabele) people Shona (Mashona) people |
| 1896 | 1898 | Philippine Revolution | Katipunan Sovereign Tagalog Nation  First Philippine Republic  United States | Kingdom of Spain |
| 1897 | 1897 | Greco-Turkish War (1897) The Thirty Days' War | Ottoman Empire | Kingdom of Greece |
| 1897 | 1897 | Intentona de Yauco | Spain | Puerto Rican Rebels |
| 1897 | 1897 | Benin Expedition of 1897 | British Empire | Kingdom of Benin |
| 1897 | 1898 | The Great Frontier Revolt Malakand Uprising Waziristan Expedition Tirah Campaign Mohmand Revolt | United Kingdom | Pashtun tribes of Afghanistan |
| 1898 | 1898 | 1898 Baloch uprising | | |
| 1898 | 1898 | Andijan uprising of 1898 | Russian Empire | Kokand Khanate Loyalists |
| 1898 | 1898 | Spanish–American War | United States Cuba  First Philippine Republic Katipunan | Kingdom of Spain |
| 1898 | 1898 | Negros Revolution | Katipunan Negrense Revolutionaries | Kingdom of Spain |
| 1898 | 1899 | Federal Revolution of 1899 | Liberal Party | Conservative Party |
| 1898 | 1899 | Second Samoan Civil War | Samoa | Mata'afans |
| 1898 | 1898 | 1898 Baloch uprising | British Empire | Rebels under Mir Baloch Khan and Mir Mehrab Khan Nausherwani |
| 1898 | 1900 | Voulet-Chanoine Mission | France | Rabih az-Zubayr's Empire |
| 1899 | 1901 | Rabih War | France Kingdom of Baguirmi | Rabih's empire |
| 1899 | 1902 | Fulbe war [Wikidata] (See Battle of Maroua–Miskin) | German Empire German Kamerun | Adamawa Emirate |
| 1899 | 1901 | Boxer Rebellion | Eight-Nation Alliance  Empire of Japan  Russian Empire  British Empire  France  United States  German Empire  Kingdom of Italy  Austria-Hungary  Netherlands  Belgium Spain | Righteous Harmony Society  China |
| 1899 | 1902 | Second Boer War | British Empire Cape Colony Natal Colony  British India  Australia  Canada  New Zealand | Orange Free State  South African Republic Foreign volunteers |
| 1899 | 1902 | Thousand Days' War | Colombian Conservative Party | Colombian Liberal Party |
| 1899 | 1902 (Malvar surrender) 1913 (Irreconcilables active) | Philippine–American War | United States Philippine Constabulary Philippine Scouts | First Philippine Republic Katipunan Pulajanes Sultanate of Sulu Moro people |
| 1899 | 1903 | Acre War | Brazil Republic of Acre | Bolivia |