# List of wars involving the United Kingdom

This is a list of conflicts involving the United Kingdom of Great Britain and Northern Ireland and its predecessor states (the Kingdom of Great Britain (and Ireland)). Notable militarised interstate disputes are included. For a list of wars before the Acts of Union 1707 merging the Kingdom of England and Scotland, please see List of wars involving England & List of wars involving Scotland. For a list of wars involving the predecessors of both states and a broader list of wars fought on the Island of Great Britain, see the list of wars in Great Britain. Historically, the United Kingdom relied most heavily on the Royal Navy and maintained relatively small land forces. Most of the episodes listed here deal with insurgencies and revolts in the various colonies of the British Empire. During its history, the United Kingdom's forces (or forces with a British mandate) have invaded, had some control over or fought conflicts in 171 of the world's 193 countries that are currently UN member states, or nine out of ten of all countries.
    British victory
    Another result *
    British defeat
    Ongoing conflict
*e.g. a treaty or peace without a clear result, status quo ante bellum, result of civil or internal conflict, result unknown or indecisive, inconclusive

## Kingdom of Great Britain (1707–1801)

| Conflict | Britain and allies | Britain's opposition | Outcome |
| The Great Northern War (1700–1721) | Swedish Empire  Ottoman Empire  United Provinces Brunswick-Lüneburg Great Britain (After 1717) | Tsardom of Russia Kalmyk Khanate Cossack Hetmanate Denmark–Norway  Electorate of Saxony Poland–Lithuania  Prussia Hanover | Inconclusive for Great Britain Britain did not gain or lose anything from the war and had exited the war a year before it ended due to financial trouble. Russian–allied victory: Tsardom of Russia establishes itself as a new power in Europe. Decline of Swedish Empire and the Polish–Lithuanian Commonwealth. |
| The War of the Spanish Succession (1701–1714) including Queen Anne's War | Austria  Dutch Republic  Savoy  England (Until 1707)  Great Britain (After 1707)  Prussia Portugal | France Spain Bavaria | British victory Treaty of Utrecht Philip V recognized as King of Spain by the Grand Alliance Territory in Canada and the West Indies ceded from France Territory in Europe ceded from Spain Indecisive or failure for Britain's various allies |
| Post-Spanish Succession Caribbean piracy (1715–1726) | Great Britain | Anglo-American-Caribbean privateers Republic of Pirates | British victory Details: Piracy outlawed by Treaty of UtrechtAnti-Caribbean Piracy campaign by Royal NavyDisestablishment of the Republic of Pirates in 1718Defeat of Edward Teach in 1718Defeat of Calico Jack in 1720Defeat of Black Bart in 1722Defeat of Edward Low in 1724Most outlawed Caribbean privateers captured or killed by 1726, marking the end of the Golden Age of Piracy |
| Civil war: (1715–1716) Jacobite rising of 1715 including The Jacobite uprising in Cornwall | Great Britain | Jacobites | British victory Jacobite restoration attempt defeated |
| The War of the Quadruple Alliance including The Nineteen Uprising in Great Britain (1717–1720) | Holy Roman Empire Great Britain  France  Dutch Republic Savoy | Spain Jacobites | British Allied victory: Royal navy won a battle; a small-scale Jacobite invasion was defeated Treaty of The Hague: Spanish attempt at expansion fails. |
| Dummer's War (1721–1725) | New England Colonies Mohawk | Wabanaki Confederacy | British victory Britain recognises the rights of the region's indigenous inhabitants. |
| The War of Jenkins' Ear (1739–1748) Location: New Granada, Caribbean, Florida, Georgia, North Carolina, Pacific and Atlantic | Great Britain | Spain Spanish Empire | Inconclusive/other outcome Status quo ante bellum British offensive in the Caribbean theatre defeated British invasion of Florida repulsed Spanish invasion of Georgia repulsed Treaty of Aix-la-Chapelle (1748) leading to Treaty of Madrid (1750) |
| The War of the Austrian Succession (1740–1748) including King George's War The War of Jenkins' Ear The First Carnatic War | Austria  Great Britain Hanover  Dutch Republic  Saxony  Sardinia  Russia East India Company | France  Prussia Spain Spanish Empire Bavaria  Saxony Naples and Sicily  Genoa Sweden French East India Company | French–allied victory in Europe but British victory outside of Europe Treaty of Aix-la-Chapelle: |
| Civil War: Jacobite rising of 1745 (1745–1746) | Great Britain | Jacobites | British victory Jacobite restoration attempt defeated |
| Father Le Loutre's War (1749–1755) | Great Britain | France Wabanaki Confederacy | British victory |
| The Second Carnatic War (1749–1754) | East India Company Forces of Nasir Jang Mir Ahmad Forces of Mohamed Ali Khan Walajan | French East India Company Forces of Chanda Shahib Forces of Muhyi ad-Din Muzaffar Jang Hidayat | British–allied victory Treaty of Pondicherry Pro-British Mohamed Ali Khan Walajan became Nawab of the Carnatic |
| First Polygar War (1755) | East India Company | Polygars | Polygar victory |
| Seven Years' War (1756–1763) including Third Carnatic War French and Indian War Pomeranian War Third Silesian War Anglo-Spanish War | Great Britain East India Company British America  Prussia Hanover Iroquois Confederacy Portugal Brunswick-Wolfenbüttel Hesse-Kassel Schaumburg-Lippe Cherokee Nation (before 1758) Catawba Mingo Lenape (from 1758) Wyandot of Ohio Country (British supported faction) | France  New France French East India Company  Holy Roman Empire  Russian Empire  Sweden Spain Spanish Empire  Saxony  Sardinia Mughal Empire Bengal Subah Wabanaki Confederacy Miꞌkmaq Algonquin Ojibwe Odawa Shawnee Lenape (until 1758) Wyandot of Fort Detroit (French supported faction) | British–allied victory Treaty of Paris Extensive North American lands (incl. all of Canada) ceded from France Caribbean colonies ceded from France Senegal River colony (excluding Gorée) ceded from France Florida ceded from Spain French trading posts in India administered by British Sumatra ceded from France |
| Anglo-Cherokee War (1758–1761) | Great Britain | Cherokee | British victory Pro–British Attakullakulla becomes Cherokee leader |
| Tacky's War (1760–1761) | Great Britain Colony of Jamaica Jamaican Maroons | Jamaican Cromanty | British–allied victory Slave revolt suppressed |
| Bengal War (1763–1765) | East India Company | Mughal Empire | British victory |
| Pontiac's Rebellion (1763–1766) | Great Britain | Native American Coalition: Odawa Potawatomi Ojibwe Mingo Seneca people Wyandot people Miami people Kickapoo people Illinois People | Inconclusive or other outcome British policy change British suzerainty over First Nation Tribes Niagara Falls area ceded from Seneca Nation |
| First Anglo-Mysore War (1766–1769) | East India Company  Maratha Empire Hyderabad State | Kingdom of Mysore | Mysorean victory Hyderabad cedes territory to Mysore |
| First Rohilla War (1773–1774) | Oudh State East India Company | Kingdom of Rohilkhand | British–allied victory |
| First Anglo-Maratha War (1774–1783) | East India Company | Maratha Empire | Maratha victory Treaty of Salbai. Maratha support for Britain against Mysore |
| American Revolutionary War (1775–1783) Anglo-French War (1778–1783) Anglo-Spanish War (1779–1783) | Great Britain Iroquois Cherokee Hanover Loyalists | United States France Spain Vermont Republic Oneida tribe Tuscarora tribe Watauga Association Catawba tribe | American–allied victory Treaty of Paris 13 North American colonies recognised as the independent United States of America Territory in North America ceded to the newly independent United States of America Senegal River colony returned to France French recognises British suzerainty over the Gambia river Territory in India returned to France British retention and creation of British North America Menorca ceded to Spain East & West Florida ceded to Spain |
| Fourth Anglo-Dutch War (1780–1783) | Great Britain | Dutch Republic Dutch East India Company France | British victory Treaty of Paris Dutch Republic cedes territory in India, Nagapatnam, to Great Britain The Dutch Republic did not enter into a formal alliance with the rebelling American colonies and their allies. Weakening of the Dutch colonial empire, while Great Britain's colonial power increased. |
| Second Anglo-Mysore War (1780–1784) | East India Company  Maratha Empire Hyderabad State | Kingdom of Mysore  France | Inconclusive or other outcome Treaty of Mangalore Status quo ante bellum |
| Revolt in Bihar (1781) | East India Company | Zamindars and chiefs | British victory |
| Third Anglo-Mysore War (1789–1792) | East India Company  Maratha Empire Hyderabad State Travancore | Kingdom of Mysore | British–allied victory Treaty of Seringapatam Half of Mysore territory ceded to the East India Company |
| War of the First Coalition (1793–1797) | Dutch Republic (until 1795) Great Britain Holy Roman Empire (until 1797) Hesse-Kassel (until 1795) Württemberg (until 1796) Baden (until 1796) Papal States (until 1797) Parma (until 1796) Portugal Prussia (until 1795) Sardinia (until 1796) Spain (until 1795) Naples (until 1796) Other Italian states Switzerland | Kingdom of France (until 1792) French Republic (from 1792) French satellites:  Batavian Republic (from 1795) Sister republics Spain (from 1796, naval only) | French victory French annexation of the Austrian Netherlands, the Left Bank of the Rhine, Savoy and other smaller territories Santo Domingo to France Several French "sister republics" established End of millennial Venetian independence Treaty of The Hague, Treaty of Paris, Peaces of Basel, Treaty of Tolentino, Treaty of Campo Formio Establishment and survival of the French Republic Napoleon becomes a political actor Hostilities resume in 1798 with the formation of a Second Coalition against France |
| Ibn Ufaisan's invasion (1792) | Kuwait Great Britain British East India Company | Emirate of Diriyah | British–allied victory |
| Ibn Ufaisan's Invasion (1793) | Kuwait Great Britain British East India Company | Emirate of Diriyah | British–allied victory Saudi retreat from Kuwait. |
| Second Rohilla War (1794) | Oudh State East India Company | Rampur State | British–allied victory |
| Fédon's Rebellion (1795–1796) | Great Britain | Grenadan revolutionaries | British victory |
| Second Maroon War (1795–1796) | Great Britain British Jamaica | Jamaican Maroons | British victory Details Treaty signed established that the Maroons would beg on their knees for the King's forgiveness, return all runaway slaves, and be relocated elsewhere in JamaicaBreach of treaty caused deportation of several Maroons to Nova Scotia and later to Sierra Leone in Africa |
| Hawkesbury and Nepean Wars (1795–1816) | Burrberongal Tribe Great Britain from 1801: United Kingdom of Great Britain and Ireland | Dharug Eora Tharawal Gandangara Irish-convict sympathisers | British victory Displacement of Aborigines from their land |
| Anglo-Spanish War (1796–1808) Location: Newfoundland, English Channel, Straits of Gibraltar, Balearic Islands, Atlantic Ocean, Caribbean, Viceroyalty of the Río de la Plata | Great Britain from 1801: United Kingdom of Great Britain and Ireland | Spain French Republic | Inconclusive or other outcome |
| Kandyan Wars (1796–1818) | Great Britain from 1801: United Kingdom of Great Britain and Ireland | Kingdom of Kandy | British victory |
| War of the Second Coalition (1797–1802) | Holy Roman Empire (until 1801) Tuscany  Bavaria  United Kingdom Russia Ottoman Empire Naples (until 1801) Portugal Sardinia | French Republic Spain French client republics:  Batavian Republic Cisalpine Republic Helvetic Republic Ligurian Republic Parthenopean Republic | French victory Treaty of Lunéville, Treaty of Amiens Survival of the French Republic Previous annexations by France confirmed Hostilities resume in 1803 with the formation of a Third Coalition against France Territorial changes: Trinidad, Ceylon and Malta to Britain Parma and Louisiana to France Tuscany to the House of Bourbon Foundation of the Septinsular RepublicReichsdeputationshauptschluss to France |
| Irish Rebellion of 1798 (1798) | Great Britain Kingdom of Ireland | Irish Republic United Irishmen Defenders French Republic | British victory Rebellion defeated |
| Fourth Anglo-Mysore War (1798–1799) | East India Company  Maratha Empire Hyderabad State | Kingdom of Mysore | British–allied victory Complete annexation of Mysore by Britain and allies |
| Second Polygar War (1799) | East India Company | Polygars of the Tirunelveli district | British victory Rebel leaders Kattabomman Nayak, Subramania Pillai and Soundra Pandian Nayak executed |
| Third Polygar War (1800–1801) | East India Company | Polygars | British victory Carnatic Treaty British assume direct control over Tamil Nadu |

## United Kingdom of Great Britain and Ireland (1801–1922)

| Conflict | Britain and allies | Britain's opposition | Outcome |
| Temne War (1801–1807) | United Kingdom Susu tribes | Kingdom of Koya | British–allied victory Northern shore of Sierra Leone ceded by Koya |
| Second Anglo-Maratha War (1802–1805) | East India Company | Maratha Empire | British victory Extensive territory in India ceded by the Maratha Empire |
| First Kandyan War (1803–1805) | United Kingdom | Kandy | British victory Territory captured from Kandy |
| Civil War: Emmet's Insurrection (1803) | United Kingdom | Forces of Robert Emmet | British victory Rebellion defeated |
| British Expedition to Ceylon (1803) | Dutch Republic United Kingdom | Chiefdom of Vanni Kingdom of Kandy | British Allied victory Vanni region lost to the British The last Tamil resistance against colonial rule was crushed. |
| War of the Third Coalition (1805–1806) | Austrian Empire  Russian Empire Naples and Sicily Portugal  Sweden | French Empire Batavia Italy Etruria  Spain Bavaria Württemberg | French Allied victory Fourth Peace of Preßburg: French victory Austria surrenders to France Pro-French Confederation of the Rhine formed |
| Vellore Mutiny (1806) | East India Company | Indian rebels | British victory |
| War of the Fourth Coalition (1806–1807) | Prussia  Russia  Saxony  Sweden Sicily | French Empire Confederation of the Rhine  Bavaria  Württemberg Polish Legions Italy Naples Etruria Holland Swiss Confederation  Spain | French Allied victory Treaties of Tilsit: French victory Half of Prussia ceded to French allies Russia exits the war Anglo-Russian War begins |
| Ashanti–Fante War (1806–1807) | Fante Confederacy United Kingdom | Ashanti Empire Dutch Empire | Dutch victory |
| Anglo-Turkish War (1807–1809) | United Kingdom | Ottoman Empire | Turkish victory Treaty of the Dardanelles Commercial and legal concessions to British interests within the Ottoman Empire Promise to protect the empire against French encroachment |
| Gunboat War (1807–1814) | United Kingdom | Denmark–Norway | British victory Treaty of Kiel Denmark and Norway split up Heligoland ceded from Denmark |
| Anglo-Russian War (1807–1812) | United Kingdom | Russian Empire | Inconclusive or other outcome Treaty of Örebro Anglo-Russian-Swedish pact against France |
| Peninsular War (1807–1814) | Spain Portugal  United Kingdom | French Empire | British Allied victory Treaty of Paris Bourbon dynasty restored Tobago, St. Lucia, Mauritius ceded from France All other French possessions restored as per 1792 borders Abolition of French Slave Trade Swiss independence |
| Travancore Rebellion (1808–1809) | East India Company | Travancore Kingdom of Cochin | British victory |
| War of the Fifth Coalition (1809) | Austrian Empire United Kingdom  Spain  Kingdom of Portugal Tyrol Hungary Black Brunswickers Sicily  Sardinia | French Empire Russian Empire Warsaw Confederation of the Rhine  Bavaria Saxony  Württemberg Westphalia Kingdom of Italy Naples Swiss Confederation Holland | French–allied victory Treaty of Schönbrunn: Complete Austrian surrender Peninsular War continued |
| Persian Gulf campaign of 1809 (1809) | United Kingdom | Al Qasimi | British victory |
| 4th Xhosa War (1811–1812) | United Kingdom Cape Colony | Xhosa tribes | British victory Xhosa tribes pushed beyond the Fish River, reversing their gains in the previous Xhosa wars |
| War of 1812 (1812–1815) | United Kingdom British North America Tecumseh's Confederacy | United States | Inconclusive or other outcome Treaty of Ghent; Status quo ante bellum with no boundary changes United States invasions of British Canada repulsed. All Pre-War borders restored under the Treaty of Ghent British invasions of the United States repulsed. All pre-war borders restored under the Treaty of Ghent |
| War of the Sixth Coalition (1812–1814) | Original Coalition Russian Empire Prussia Austrian Empire United Kingdom Sweden Spain Portugal Two Sicilies Kingdom of Sardinia After Battle of Leipzig Saxony  Bavaria  Württemberg United Netherlands | First French Empire  Napoleonic Italy  Kingdom of Naples Duchy of Warsaw Until January 1814 Denmark–Norway Confederation of the Rhine (Many member states defected after Battle of Leipzig) | British–allied victory Coalition victory, Treaty of Fontainebleau, First Treaty of Paris Bourbon Restoration; Napoleon's exile to Elba Various territorial changes Beginning of the Congress of Vienna Hostilities resume with the return of Napoleon to power in 1815 |
| Anglo-Nepalese War (1814–1816) | East India Company | Kingdom of Nepal | British victory |
| Second Kandyan War (1815) | United Kingdom | Kandy | British victory Kandyan Convention: Dissolution of the Kandy royal line British King declared King of Kandy |
| Hundred Days (1815) War of the Seventh Coalition | United Kingdom  Prussia France Hanover German Confederation  Austria  Russia  Sweden  Netherlands  Spain Portugal  Sardinia  Kingdom of the Two Sicilies Tuscany | French Empire Naples | British Allied victory Treaty of Paris: General French defeat Restoration of the House of Bourbon Abolition of the slave trade (all signatories) ₣100,000,000 compensation from France |
| Slachter's Nek Rebellion (1815) | United Kingdom | Boer rebels | British victory |
| Bussa's Rebellion (1816) | United Kingdom | Rebel slaves | British victory |
| Bombardment of Algiers (1816) | United Kingdom Netherlands | Regency of Algiers | British Allied victory |
| Third Anglo-Maratha War (1817–1818) | East India Company | Maratha Empire | British victory Virtually all territory south of the Sutlej River controlled by Britain |
| Paika Rebellion (1817–1818) | East India Company | Bhoi dynasty | British victory End of Paika rule East India Company establishes rule over Odisha and the Paikas |
| Greek War of Independence (1821–1829) Battle of Navarino | 1821: Filiki Eteria Greek revolutionaries After 1822: Hellenic Republic Supported by: Romanian Revolutionaries (1821) Philhellenes  United Kingdom (after 1826) Russian Empire (after 1826) Kingdom of France (after 1826) Serb and Montenegrin volunteers | Ottoman Empire Egypt Algeria Tripolitania Tunis | British Allied victory First Hellenic Republic established and recognized |
| First Anglo–Ashanti War (1823–1831) | British Empire | Ashanti Empire | British victory |
| Bathurst War (1824) | United Kingdom | Wiradjuri | British victory |
| First Anglo-Burmese War (1824–1826) | East India Company Native tribes | Burmese Empire | British Allied victory Treaty of Yandabo: Assam, Manipur, Rakhine, and Taninthayi coast south of Salween river ceded from Burma £1,000,000 compensation from Burma |
| Siege of Bharatpur (1825–1826) | East India Company | Bharatpur State | British victory |
| British attack on Berbera (1827) | United Kingdom Royal Navy East India Company | Isaaq Sultanate Habr Awal | British Allied victory Destruction of large parts of Berbera Indemnity agreed upon for 1825 Habr Awal attack Crucial caravan trade halted temporarily |
| Revolt of the Mercenaries (1828) | Brazil United Kingdom France | German Mercenaries Irish Mercenaries | British Allied victory Mutiny suppressed |
| Ahom Rebellion (1828) | East India Company | Ahom dynasty | British victory |
| Bathurst Rebellion (1830) | United Kingdom | Bushrangers | British victory |
| Naning War (1831–1832) | East India Company | Naning | British victory |
| Barra War (1831–1832) | United Kingdom | Kingdom of Niumi | Inconclusive or other outcome |
| Baptist War (1831–1832) | United Kingdom Colony of Jamaica | Rebel slaves | British victory Slave defeat Rebellion suppressed |
| Reassertion of British sovereignty over the Falkland Islands (1832–1833) | United Kingdom | United Provinces of the Río de la Plata | British victory British control of the Falkland islands |
| First Carlist War (1833–1840) | Forces of Queen Isabella II French Kingdom Forces of Queen Maria II Auxiliary Legion | Carlists: Forces of Infante Carlos Forces of King Miguel | Inconclusive or other outcome British withdrawal before the war's conclusion British mediated Convention of Vergara |
| Coorg War (1834) | East India Company | Kingdom of Coorg | British victory |
| The 6th Xhosa War (1834–1836) | Free Khoikhoi | Xhosa tribes | British victory Extensive territorial gains from Xhosa |
| Rebellions of 1837 (1837–1838) | United Kingdom Province of Upper Canada Province of Lower Canada British Loyalists | Patriotes Hunters' Lodges Reform Movement | British victory Patriote rebellion crushed by loyalist forces; Republic of Canada dismantled Defeat of Hunters' Lodges Unification of Upper and Lower Canada into the Province of Canada |
| Pastry War (1838–1839) also known First Franco–Mexican War | France United Kingdom | Mexico | British Victory Mexican government accepts to pay the 600,000 pesos |
| First Anglo-Afghan War (1838–1842) | East India Company Durrani Kingdom Maimana Khanate Khulm (August 1840 for mere days, September 1840-November 1841) Sadozai loyalists | Emirate of Kabul Principality of Qandahar Khanate of Kalat Khulm (August 1840, November 1841 onwards.) Marri Bugti Afghan Tribes Barakzai Loyalists | Barakzai Afghan victory British retreat from Afghanistan |
| Aden Expedition (1839) | United Kingdom | Lahej | British victory Port of Aden ceded to Britain |
| Second Egyptian-Ottoman War (1839–1841) | Ottoman Empire British Empire | Egypt Eyalet Kingdom of the French Spain | British Allied victory Egypt renounced its claim to Syria. |
| First Opium War (1839–1842) | United Kingdom | Qing dynasty | British victory Treaty of Nanking: Five Chinese ports open to foreign trade $21,000,000 compensation from the Qing Empire Hong Kong Island ceded from the Qing Empire |
| Newport Rising (1839) | United Kingdom | Chartists | British victory |
| Mysore Rebellion (1840–1841) | East India Company | Forces led by Dhondji Wagh | British victory |
| Battle of Congella (1842) | United Kingdom | Natalia Republic | British victory |
| British Conquest of Sindh (1843) | East India Company | Talpur dynasty | British victory |
| Gwalior Campaign (1843) | East India Company | Gwalior State | British victory |
| Flagstaff War (1845–1846) | United Kingdom Colony of New Zealand | Māori | Inconclusive or other outcome |
| Anglo-French blockade of the Río de la Plata (1845–1850) Battle of Vuelta de Obligado | British Empire Kingdom of France | Argentine Confederation | Argentine Confederation victory Arana-Southern Treaty France and Britain recognize the sovereignty of Argentina on La Plata River and its tributaries. |
| First Anglo-Sikh War (1845–1846) | East India Company Patiala State | Sikh Empire | British Allied victory Treaty of Lahore: Extensive territory ceded from the Sikh Empire Partial control over Sikh foreign affairs |
| Hutt Valley Campaign (1846) | United Kingdom Colony of New Zealand | Ngāti Toa | British victory |
| The 7th Xhosa War (1846–1847) The War of the Axe | United Kingdom Cape Colony | Xhosa tribes | British victory Territory ceded from Xhosa |
| Whanganui Campaign (1847) | United Kingdom Colony of New Zealand | Māori | Inconclusive or other outcome |
| Caste War of Yucatán (1847–1901) Battle of Orange Walk | Mexico Republic of Yucatán Guatemala United Kingdom British Honduras | Maya | British Allied victory Republic of Yucatán rejoins the United Mexican States in 1848 Mayas achieve an independent state from 1847 to 1883 Mexico recaptures Yucatán Conflict between the Mexicans and the Mayans continued until 1933 |
| Second Anglo-Sikh War (1848–1849) | East India Company | Sikh Empire | British victory Complete annexation of the Punjab by the East India Company |
| Battle of Tysami (1849) | United Kingdom | Chui A-poo's pirates | British victory |
| Battle of Tonkin River (1849) | United Kingdom Qing dynasty Nguyen dynasty | Shap-ng-tsai's pirates | British Allied victory |
| The 8th Xhosa War (1850–1853) Mlanjeni's War | United Kingdom Cape Colony | Xhosa tribes Khoikhoi tribes Native Kafir Police | British victory Xhosa-Khoi attacks defeated Status quo ante bellum |
| Taiping Rebellion (1850–1864) | Qing dynasty France United Kingdom | Taiping Heavenly Kingdom | British Allied victory Qing dynasty victory Fall of the Taiping Heavenly Kingdom Weakening of the Qing dynasty |
| Eureka Rebellion (1851–1854) Battle of the Eureka Stockade | United Kingdom Colony of Victoria | Stockade rebels | British victory |
| Reduction of Lagos (1851–1852) | United Kingdom | Lagos | British victory |
| Second Anglo-Burmese War (1852–1853) | United Kingdom | Burmese Empire | British victory Burmese revolution ended fighting Lower Burma annexed |
| Crimean War (1853–1856) | French Empire United Kingdom  Ottoman Empire  Kingdom of Sardinia | Russian Empire Bulgarian Legion | British Allied victory Treaty of Paris |
| The Battle of Muddy Flat (1854) Part of Taiping Rebellion, but before the British switched sides in (1860). | United Kingdom United States Taiping Heavenly Kingdom Shanghai Volunteer Corps | Qing dynasty (A-Pak Pirate Mercenary Fleet) | British Allied victory Qing forces retreat a mile away from the foreign concessions area Adherence to Foreign Extraterritoriality Status Maintained Yangtze Patrol, Shanghai Municipal Council, Shanghai Municipal Police, and the Chinese Maritime Customs Serviceestablished |
| Second Opium War (1856–1860) Arrow War | French Empire United States United Kingdom | Qing dynasty | British Allied victory The Treaty of Tientsin: Kowloon ceded from the Qing Empire Peking opened to foreign trade 11 more Chinese ports opened to foreign trade Yangtze River opened to foreign warships 4,000,000 taels of silver compensation China banned from referring to subjects of the crown as barbarians |
| Anglo-Persian War (1856–1857) | Afghanistan East India Company | Persia | British Allied victory Persian withdrawal from Herat |
| Indian Rebellion of 1857 (1857–1858) | East India Company Nepal Jammu and Kashmir Princely states Jaipur Bikaner Marwar Rampur Kapurthala Nabha Bhopal Sirohi Udaipur Patiala Sirmur Alwar Bharathpur Bundi Jaora Bijawar Ajaigarh Rewa Kendujhar Hyderabad | Sepoys of the East India Company  Mughal Empire Awadh Jhansi 7 Princely states | British Allied victory Act for the Better Government of India: Company rule in India dissolved Indian Empire established Ban on Christian missionaries in India |
| Invasion of the Waikato (1863–1864) | United Kingdom Colony of New Zealand | Kīngitanga | British victory |
| Shimonoseki Campaign (1863–1864) | United Kingdom French Empire Netherlands United States | Chōshū Domain | British Allied victory |
| Bombardment of Kagoshima (1863) | United Kingdom | Satsuma Domain | British victory Tactical stalemate and mitigated British victory |
| Ambela Campaign (1863–1864) | United Kingdom | State of Swat Yusufzai | British victory |
| Tauranga Campaign (1864) | United Kingdom Colony of New Zealand | Tauranga Māori | British victory |
| Duar War (1864–1865) | India | Bhutan | British victory |
| Fenian Rising (1867) | United Kingdom | Irish Republican Brotherhood Fenian Brotherhood | British victory |
| British Expedition to Abyssinia (1867–1868) | United Kingdom | Ethiopia | British victory |
| Klang War (1867–1874) Selangor Civil War | Forces of Raja Abdullah of Klang British Straits Settlements | Forces of Raja Mahadi | British Allied victory |
| Nukapu Expedition (1871–1872) | United Kingdom | Nukapu natives | British victory |
| Bombardment of Omoa (1873) | United Kingdom | Honduras | British victory |
| Third Ashanti War (1873–1874) | United Kingdom | Ashanti Empire | British victory Treaty of Fomena: 50,000 oz of gold compensation from Ashanti Empire Ashanti withdrawal from coastal areas Ashanti banned from practising human sacrifice |
| Second Anglo-Afghan War (1878–1880) | India Afzalids | Afghanistan | British-Afzalid victory Treaty of Gandamak: Abdur Rahman Khan installed as Emir Afghanistan becomes a British protected state Districts of Quetta, Pishin, Sibi, Harnai and Thal Chotiali ceded to British India |
| Anglo-Zulu War (1879) | United Kingdom Natal | Zulu Kingdom | British victory Zululand annexed to Natal |
| 'Urabi Revolt (1879–1882) | United Kingdom Khedivate of Egypt | Egyptian and Sudanese forces under Ahmed 'Urabi | British Allied victory 'Urabi's forces defeated and exiled |
| Basuto Gun War (1880–1881) | United Kingdom Cape Colony | Basuto people | Basuto victory Basuto people maintain their partial autonomy British failure to disarm the Basuto people |
| First Boer War (1880–1881) | United Kingdom | South African Republic | South African victory Pretoria Convention: South African Republic granted self-government |
| Mahdist War (1881–1899) | United Kingdom Italy Ethiopian Empire Congo Free State Egypt | Mahdist State | British Allied victory Britain and Egypt took over Sudan and turned it into a condominium known as the Anglo-Egyptian Sudan Kassala temporarily occupied by Italy |
| Third Anglo-Burmese War (1885) | United Kingdom | Burmese Empire | British victory Upper Burma annexed to India |
| Sikkim Expedition (1888) | India | Tibet | British victory Tibet recognizes British suzerainty over Sikkim |
| Hazara Expedition (1888) | United Kingdom India | Tribes of the Torghar District | British victory |
| Chin-Lushai Expedition (1889–1890) | India | Tribes of the Chin Hills and Lushai Hills | British victory |
| Anglo-Manipur War (1891) | United Kingdom | Kingdom of Manipur | British victory |
| Hunza-Nagar Campaign (1891) | India | State of Hunza Nagar State | British victory |
| First Matabele War (1893–1894) | South Africa Company | Ndebele Kingdom | British victory |
| Chitral Expedition (1895) | United Kingdom India Pro–British Chitralis Dir state | Pashtuns Chitralis | British victory |
| Anglo-Zanzibar War (1896) | United Kingdom | Sultanate of Zanzibar | British victory Pro-British Sultan installed |
| Second Matabele War (1896–1897) | South Africa Company | Matebele | British victory |
| Tochi Expedition (1897) | United Kingdom India | Waziris | British victory |
| Siege of Malakand (1897) | United Kingdom | Pashtuns | British victory |
| Tirah campaign (1897–1898) | United Kingdom India | Pashtuns | British victory |
| Mohmand campaign (1897–1898) | United Kingdom India | Mohmand | British victory |
| Cretan Revolt (1897–1898) | Cretan revolutionaries Kingdom of Greece British Empire France Italy Russian Empire Austria-Hungary (until 12 April 1898) German Empire (until 16 March 1898) | Ottoman Empire | British victory Establishment of the Cretan State. Withdraw of Ottoman forces from Crete. |
| Benin Expedition of 1897 (1897) | United Kingdom | Kingdom of Benin | British victory |
| Tirah Campaign (1897–1898) | India | Afridi tribe Orakzai tribe Chamkani tribe | British victory |
| Second Samoan Civil War (1898–1899) | Supporters of Tanumafili I  United States  United Kingdom | Supporters of Mata'afa  Germany | Inconclusive or other outcome Tripartite Convention |
| Six-Day War (1899) | United Kingdom | Punti clans | British victory |
| Boxer Rebellion (1899–1901) | United Kingdom  Russia  Japan France  United States  Germany  Italy  Austria-Hungary | Righteous Harmony Society  Qing dynasty | British Allied victory Boxer Protocol: Anti-foreign societies banned in China |
| Second Boer War (1899–1902) | United Kingdom | South African Republic Orange Free State Foreign volunteers | British victory Treaty of Vereeniging: All Boers to surrender arms and swear allegiance to the Crown Dutch language permitted in education Promise to grant Boer republics self-government £3,000,000 compensation "reconstruction aid" to Afrikaners |
| War of the Golden Stool (1900) | United Kingdom | Ashanti Empire | British victory Capture of Yaa Asentawaa and banishment to the Seychelles Ashanti territories become part of Gold Coast colony in 1902 Ashanti retain control of the Golden Stool |
| Somaliland Campaign (1900–1920) | United Kingdom Italy Ethiopia (1900–1904) | Dervish Movement | British victory |
| Mahsud Waziri blockade (1900–1902) | India | Mahsud rebels | British victory |
| Anglo-Aro War (1901–1902) | United Kingdom | Aro Confederacy | British victory Aro Confederacy destroyed |
| Kano–Sokoto Expedition (1903) Battle of Kano Battle of Kwatarkwashi Battle of Burmi | United Kingdom | Sokoto Caliphate Kano Emirate | British victory |
| British expedition to Tibet (1903–1904) | India | Tibet | British victory Status quo ante bellum |
| Bambatha Rebellion (1906) | United Kingdom | Zulu rebels | British victory |
| Bazar Valley campaign (1908) | India | Rebel tribes | British victory |
| Muscat Rebellion (1913–1920) | British Empire Muscat and Oman | Imamate of Oman | Inconclusive or other outcome |
| First World War (1914–1918) | Allied Powers  France  British Empire  United Kingdom  Canada  Newfoundland  Australia  New Zealand  India  South Africa  Russia  United States  Italy  Japan  China  Serbia  Montenegro  Romania  Belgium  Greece  Portugal  Brazil Other Allies | Central Powers  Germany German Empire  Austria-Hungary  Ottoman Empire  Bulgaria | British Allied victory Treaty of Versailles: German demobilisation Treaties of Saint-Germain-en-Laye and Trianon: Demise of Austria-Hungary Russia pulls out in 1917 Russian Civil War Creation of the Soviet Union Creation of League of Nations: Mesopotamia ceded from the Ottoman Empire Palestine and Jordan ceded from the Ottoman Empire Tanganyika ceded from Germany Part of Kamerun ceded from Germany Part of Togoland ceded from Germany German New Guinea ceded to Australia German Samoa ceded to New Zealand German South-West Africa ceded to South Africa |
| Operations in the Tochi (1914–1915) | India | Khost tribesmen | British victory |
| Chilembwe uprising (1915) | British Empire Nyasaland | Nyasaland rebels | British victory |
| Kelantan Rebellion (1915) | British Empire British Malaya | Kelantanese rebels | British victory Uprising suppressed |
| Peshawar Campaign (1915) | India | Mohmands, Bunerwals and Swatis | British victory |
| Bussa Rebellion (1915) | British Empire  British Nigeria | Bussa rebels | British victory Rebellion suppressed |
| Invasion of Darfur (1916) | British Empire Sultanate of Egypt | Sultanate of Darfur | British Allied victory |
| Easter Rising (1916) | United Kingdom | Irish Republic Irish Citizen Army Irish Volunteers Fianna Éireann Cumann na mBan Hibernian Rifles | British victory Uprising suppressed |
| Mohmand Blockade (1916–1917) | India | Mohmands | British victory |
| Mahsuds Campaign (1917) | India | Mahsud tribesmen | British victory |
| Kuki Rebellion of 1917–1919 (1917–1919) | India | Kuki tribes | British victory |
| Adubi War (1918) | British forces | Egba rebels | British victory Uprising suppressed |
| Estonian War of Independence (1918–1920) | Estonia United Kingdom Latvia White Movement Baltic German volunteers Danish volunteers Finnish volunteers Swedish volunteers | Russian SFSR Baltische Landeswehr | British Allied victory Independence of Estonia Vidzeme gained by the Republic of Latvia |
| Latvian War of Independence (1918–1920) | Latvia Estonia White Movement Poland Lithuania United Kingdom | German Empire West Russian Volunteer Army  Russian SFSR Latvian SSR | British Allied victory Independence of Latvia |
| Allied intervention in the Russian Civil War (1918–1920) | White Movement  British Empire  United Kingdom  Canada  Australia  India  South Africa  United States France  Japan  Czechoslovakia  Greece  Estonia  Serbia  Italy  Poland  Romania  China | Russian SFSR  Far Eastern Republic Latvian SSR Ukrainian SSR Commune of Estonia Mongolian Communists | Bolshevik victory Allied withdrawal from Russia Bolshevik victory over White Army Establishment of the Soviet Union |
| Irish War of Independence (1919–1921) | United Kingdom | Irish Republic | Inconclusive/Other Anglo-Irish Treaty Irish Free State established comprising the 26 counties of the formerly proposed Southern Ireland 6 counties of Northern Ireland remain part of UK with some violence continuing after the treaty United Kingdom retains the Ports of Berehaven, Spike Island and Lough Swilly |
| Third Anglo-Afghan War (1919) | India | Afghanistan | Disputed/Unknown Treaty of Rawalpindi |
| Turkish War of Independence (1919–1923) | Greece France Armenia (in 1920) United Kingdom Ottoman Empire (until 1922) Kuva-yi Inzibatiye (in 1920) Georgia (in 1921) | Turkish National Movement Grand National Assembly (after 1920) Kuva-yi Nizamiye Kuva-yi Milliye (until 1920) Supported by:  Russian SFSR Azerbaijan SSR Georgian SSR Bukharan PSR Afghanistan All-India Muslim League  Italy | Turkish Allied victory Treaty of Lausanne Overthrow of the Ottoman sultanate Withdrawal of Allied forces from occupied lands of Turkey Establishment of the Republic of Turkey Starting of the series of reforms led by Atatürk |
| Kuwait–Najd War (1919–1920) | Kuwait British Empire  India | Sultanate of Nejd Ikhwan | British Allied victory |
| Waziristan Campaign (1919–1920) | India | Waziristan | British victory |
| Samakh Raid (1920) | United Kingdom | Arab Kingdom of Syria | British victory |
| Great Iraqi Revolution of 1920 (1920) | United Kingdom | Iraqi rebels | Inconclusive/Other Iraqi political victory Greater autonomy given to Iraq Faysal ibn Husayn installed as King British Mandate for Mesopotamia cancelled |
| Waziristan campaign (1921–1924) | British Empire  India | Waziristan | British victory |
| 1922 Burao Tax Revolt (1922) | United Kingdom  • British Somaliland | Habr Yunis tribesmen | Tribal victory Tax policy abandoned |
| IRA Northern Offensive (1922) | United Kingdom | Irish Republican Army | British victory |

## United Kingdom of Great Britain and Northern Ireland (1922–present)

| Conflict | Britain and allies | Britain's opposition | Outcome |
| Adwan Rebellion (1923) | United Kingdom Emir Abdullah's forces Hashemite allied tribesmen: Sheykh Minwar al-Hadid | Sultan al-Adwan's forces | British Allied victory Sultan al-Adwan's defeat and exile |
| Pink's War (1925) | United Kingdom | Mahsud | British victory |
| Irene Incident (1927) | United Kingdom | Pirates | British victory |
| Ikhwan Revolt (1927–1930) | Kuwait Nejd and Hejaz RAF | Ikhwan | British Allied victory Ikhwan attack on Kuwait repelled. The remnants of the Ikhwan incorporated into regular Saudi units. The Ikhwan leadership was either slain or imprisoned. |
| Mohmand campaign (1935) | British Empire  India | Mohmand Kingdom of Afghanistan | British victory Revolt suppressed |
| Great Arab Revolt in Palestine (1936–1939) | United Kingdom Yishuv | Arab Higher Committee | British–allied victory Revolt suppressed |
| Waziristan Campaign (1936–1939) | India | Waziristan | British victory |
| Palestine Emergency (1939–1948) | United Kingdom | Yishuv | Yishuv victory Hand over to the United Nations British withdrawal from Mandatory Palestine Civil war in Mandatory Palestine begins |
| S-Plan 16 January 1939 – March 1940 | United Kingdom | Irish Republican Army | British victory British victory IRA failed to force the withdrawal of British troops from Ireland |
| Second World War (1939–1945) | Allied Powers  United States  Soviet Union  United Kingdom  China France Poland  Canada  Australia  New Zealand  British India  South Africa  Yugoslavia  Greece  Denmark  Norway  Netherlands  Belgium  Luxembourg  Czechoslovakia  Ethiopia  Brazil  Mexico Gorkha Kingdom | Axis Powers  Germany  Japan  Italy  Hungary  Romania  Bulgaria  Croatia  Slovakia  Finland  Iraq  Thailand  Manchukuo  Mengjiang  Azad Hind  State of Burma | British Allied victory Nazi Germany formally surrenders 8 May 1945, ending the Second World War in Europe. On 15 August 1945, following the dropping of atom bombs on Hiroshima and Nagasaki, Japan announces its surrender, ending the Second World War British (and Commonwealth), French, American, and Soviet troops occupy Germany until 1955, Italy and Japan lose their colonies, Europe is divided into 'Soviet' and 'Western' spheres of interest. |
| Anglo-Soviet Invasion of Iran (1941) | United Kingdom Soviet Union | Iran | British Allied victory |
| Northern Campaign 2 September 1942 – December 1944 | Royal Ulster Constabulary | Irish Republican Army | British victory IRA campaign failure |
| Afghan tribal revolts of 1944–1947 (1944–1947) | Afghanistan • Allied Nuristani tribesmen British Empire • British India | Rebel tribes: Zadran Mangal Safi | Afghan government & British victory Rebel invasion of India in 1944 repelled Rebels fully defeated by Afghan government in January 1947 |
| 1944–45 Insurgency in Balochistan (1944–1945) | United Kingdom | Badinzai rebels | British victory Insurgency subsided by March 1945 |
| Dekemvriana (1944–1945) | Kingdom of Greece United Kingdom | National Liberation Front (Greece) ELAS | British Allied victory |
| 1945 Sheikh Bashir Rebellion (1945) | United Kingdom  • British Somaliland | Armed Habr Je'lo tribesmen | British Pyrrhic victory Sheikh Bashir killed, unrest continues, anti-colonialist and nationalist sentiment increases in Somaliland |
| Indonesian National Revolution (1945–1949) | United Kingdom Netherlands  Japan (until 1945) | Indonesia  Japan (volunteers)  India (defectors) | Inconclusive or other outcome Hand over to Dutch in 1946 Netherlands recognises Indonesian Independence |
| Operation Masterdom (1945–1946) | United Kingdom  India France Empire of Japan | Việt Minh | British Allied victory Hand over to French First Indochina War begins |
| Greek Civil War (1946–1948) | Kingdom of Greece  United Kingdom  United States | D.S.E. (Δ.Σ.Ε.)  Albania  Yugoslavia  Bulgaria | British Allied victory Communist forces defeated, many D.S.E. soldiers exiled in Eastern Europe. Battalion of UK troops still in Greece until 1948 |
| Corfu Channel incident (1946–1948) | United Kingdom | Albania | Inconclusive or other outcome World Court case concluded in 1949 Britain breaks off talks aimed at establishing diplomatic relations with Albania. |
| Malayan Emergency (1948–1960) | British Commonwealth  United Kingdom Federation of Malaya  Australia  New Zealand  Southern Rhodesia  Fiji  Kenya  Thailand | Malayan Communist Party Malayan National Liberation Army | British Allied victory Destruction of the majority of MNLA guerrilla organisations, Communist leadership retreat to Thailand Preservation of capitalism and British economic interests |
| Korean War (1950–1953) | United Nations Command  South Korea  United States British Commonwealth Forces Korea  United Kingdom  Canada  Australia  New Zealand  India  Belgium  France  Philippines  Colombia  Ethiopia  Greece  Luxembourg  Netherlands  South Africa  Thailand  Turkey | North Korea China  Soviet Union | Inconclusive or other outcome Korean Armistice Agreement Communist invasion of South Korea repelled UN invasion of North Korea repelled |
| 1951 Anglo-Egyptian War (1951–1952) | United Kingdom United States | Egypt Muslim Brotherhood | British victory Ended with the Egyptian Revolution of 1952. |
| Mau Mau Uprising (1952–1960) | United Kingdom British Kenya | Mau Mau | British victory Defeat of Mau Mau Kenyan independence |
| Opération Ajax (15-19 August 1953) | United Kingdom  United States | Government of Iran | Overthrow of Prime Minister Mohammad Mosaddegh General Fazlollah Zahedi appointed as prime minister of post-coup military government by Mohammad Reza Shah Pahlavi Monarchy increased in power relative to government Pro-Western secular anti-communist Iranian government established |
| Jebel Akhdar War (1954–1959) | Sultanate of Muscat and Oman United Kingdom | Imamate of Oman Ibadi sect Saudi Arabia | British Allied victory Dissolution of the Imamate of Oman |
| Cyprus Emergency (1955–1959) | United Kingdom Cyprus Colony TMT | EOKA | Inconclusive or other outcome EOKA was not defeated Enosis not achieved Cyprus became an independent republic in 1959 with Britain retaining control of two Sovereign Base Areas, at Akrotiri and Dhekelia. |
| Suez Crisis (1956–1957) | United Kingdom France  Israel | Egypt | Inconclusive or other outcome Coalition military victory Egyptian political victory Anglo-French withdrawal following international pressure (December 1956) Israeli occupation of Sinai (until March 1957) UNEF deployment in Sinai Straits of Tiran re-opened to Israeli shipping |
| Border Campaign (1956–1962) | United Kingdom | Irish Republican Army | British victory IRA campaign fails |
| First Cod War (1958–1961) | United Kingdom | Iceland | Icelandic victory Iceland expands its territorial waters to 12 nautical miles |
| Upper Yafa disturbances (1959) | British Empire Upper Yafa | Rebels | British victory |
| Brunei Revolt (1962) | United Kingdom Brunei Malaya | Brunei People's Party | British Allied victory |
| Indonesia–Malaysia Confrontation (1963–1966) | Commonwealth of Nations  Malaysia  United Kingdom  Australia  New Zealand | Indonesia | British Allied victory Indonesia recognises Malaysian rule over former North Borneo |
| Dhofar Rebellion (1963–1975) | Oman United Kingdom Iran  Jordan | Various insurgents | British Allied victory Insurgency defeated Modernisation of Oman |
| Aden Emergency (1963–1967) | Federation of South Arabia United Kingdom | NLF FLOSY | Yemeni NLF victory People's Republic of South Yemen established |
| The Troubles (1968–1998) | United Kingdom Loyalist paramilitaries: Ulster Volunteer Force Ulster Defence Association Red Hand Commando Ulster Resistance Loyalist Volunteer Force | Republican paramilitaries: Provisional IRA Official IRA Continuity IRA Real IRA Irish National Liberation Army Irish People's Liberation Organisation | Stalemate Inconclusive or other outcome Good Friday Agreement: Devolution in Northern Ireland Power-sharing deal Cross-border cooperation Disarming of paramilitary groups Police reform Demilitarisation |
| Second Cod War (1972–1973) | United Kingdom | Iceland | Icelandic victory UK accept Iceland's 50 nautical mile exclusive fishery zone |
| Third Cod War (1975–1976) | United Kingdom | Iceland | Icelandic victory Iceland expands its exclusive fishery zone to 200 nautical miles |
| Iranian Embassy siege (1980) | United Kingdom | Democratic Revolutionary Front for the Liberation of Arabistan | British victory |
| Falklands War (1982) | United Kingdom | Argentina | British victory British sovereignty over the Falkland Islands and South Georgia and the South Sandwich Islands re-established. End of Argentine occupation of Southern Thule island. |
| Multinational Force in Lebanon (1982–1984) | United Kingdom  France  United States  Italy | Islamic Jihad Organization Iran Syria Progressive Socialist Party Amal Movement | Syrian Allied victory Multinational forces fail to prevent collapse of Lebanese Army into Syrian- or Israeli- supported militias Multinational forces evacuated after the US embassy and US Marine barracks are bombed by the Islamic Jihad Organization Multinational forces oversee withdrawal of Palestine Liberation Organization Humanitarian crisis in Southern Lebanon Civil war continues until 1990 President Hafez al-Assad continues his occupation of Lebanon until his son and later president Bashar al-Assad orders a withdrawal from the country |
| Gulf War (1990–1991) | Kuwait  United States  United Kingdom  Saudi Arabia  France  Egypt  Syria Other Allies | Iraq | British Allied victory Kuwait regains its independence |
| Bosnian War (1992–1995) | UNPROFOR  NATO | Republika Srpska  Serbian Krajina Western Bosnia | Military stalemate Dayton Accords |
| Operation Desert Fox (1998) | United States  United Kingdom | Iraq | British Allied victory Objectives largely achieved |
| Kosovo War (1998–1999) | United States  United Kingdom  France  Canada  Denmark  Germany  Italy Kosovo Liberation Army | Yugoslavia | British Allied victory Kosovo occupied by Nato forces Kosovo administered by UNMIK |
| Sierra Leone Civil War (2000–2002) | Sierra Leone United Kingdom | RUF Liberia AFRC West Side Boys | British Allied victory Rebels defeated |
| War in Afghanistan (2001–2021) | Afghanistan  United States  United Kingdom  Canada  Germany  Italy  France  Denmark  Poland  Romania  Turkey  Australia  Spain  Netherlands ISAF | Islamic Emirate of Afghanistan Al-Qaeda | Taliban victory The Taliban militia, overthrown in 2001. British withdrawal in 2014. Taliban regained power on 15 August 2021, after 20 years of NATO deployment. |
| Iraq War (2003–2009) | United States  United Kingdom  Iraq after the fall of Saddam Hussein  Australia  Poland  Denmark  Iraqi Kurdistan | Iraq under Saddam Hussein Islamic State of Iraq Various insurgents | British Allied victory: Overthrow of Ba'ath Party government Occupation of southern Iraq Iraqi insurgency, emergence of al-Qaeda in Iraq, and Sectarian Violence Rise of the Islamic State of Iraq and the Levant, the successor of al-Qaeda in Iraq |
| First Libyan Civil War (2011) | Many NATO members acting under UN mandate, including:  United States  United Kingdom  France  Denmark  Italy  Canada and Anti-Gaddafi forces several Arab League states  Sweden | Pro-Gaddafi forces | British Allied victory Fall of Libyan Arab Jamahiriya Muammar Gaddafi killed National Transitional Council take control |
| Operation Shader (2014–present) | United States United Kingdom Iraq Syrian Opposition Australia Belgium Canada Denmark France Germany Italy Netherlands New Zealand Norway Portugal Spain Turkey Bahrain Jordan Morocco Qatar Saudi Arabia United Arab Emirates Rojava Egypt Libya Nigeria Cameroon Chad Niger Russia | Islamic State of Iraq and the Levant Boko Haram al-Nusra Front Khorasan Ahrar ash-Sham | Ongoing The UK's Operation Shader is ongoing as part of intervention in Iraq and Syria (2014–present) 3,000+ ISIL fighters killed in 1,700 British airstrikes. Ongoing operations by UK Special Forces in Syria. British armed forces provide material and training to Iraqi Security Forces and Peshmerga. As part of the American-led interventions in Syria and Iraq, contributes to the loss of all of ISIL's territory in Iraq (by December 2017) and Syria (by March 2019). |
| Operation Prosperity Guardian (2023–present) | United States United Kingdom Canada France Greece Italy Netherlands Norway Spain Bahrain Seychelles Sri Lanka New Zealand | Supreme Political Council  Houthi movement | Ongoing US-led multinational coalition formed in December 2023 to respond to attacks on shipping in the Red Sea. |