19th century

=== Other wars ===
* [[1801]]–[[1815]]: [[First Barbary War]] and the [[Second Barbary War]] between the United States and the [[Barbary States]] of [[North Africa]].
* [[1802]]: [[Tây Sơn dynasty|Tay Son]] army recaptured [[Thừa Thiên Huế province|Phu Xuan]], causing Vo Tanh to commit suicide, [[Gia Long|Nguyen Phuc Anh]] successfully captured [[Hanoi|Thang Long]], founded the [[Nguyen dynasty]]
* [[1804]]–[[1810]]: [[Fulani War|Fulani Jihad]] in [[Nigeria]].
* [[1804]]–[[1813]]: [[Russo-Persian War (1804–1813)|Russo-Persian War]].
* [[1806]]–[[1812]]: [[Russo-Turkish War (1806–1812)|Russo-Turkish War]], [[Treaty of Bucharest (1812)|Treaty of Bucharest]].
* [[1807]]–[[1837]]: [[Musket Wars]] among [[Māori people|Māori]] in many parts of [[New Zealand]]. 
* [[1808]]–[[1809]]: Russia conquers Finland from Sweden in the [[Finnish War]].[[File:KingShaka.jpg|thumb|1816: [[Shaka]] rises to power over the [[Zulu Kingdom]]. Zulu expansion was a major factor of the [[Mfecane]] ("Crushing") that depopulated large areas of southern Africa]]
* [[1810]]: [[Grito de Dolores]] begins the [[Mexican War of Independence]].
* [[1811]]: [[Battle of Tippecanoe]]: U.S. outnumbering Native Americans resulting in defeat and burning of community
* [[1812]]–[[1815]]: [[War of 1812]] between the United States and Britain; ends in a draw, except that Native Americans lose power.
* [[1813]]–[[1837]]: [[Afghan–Sikh Wars]].
* [[1814]]–[[1816]]: [[Anglo-Nepalese War]] between [[Nepal]] (Gurkha Empire) and [[British Empire]].
* [[1817]]: First [[Seminole War]] begins in Florida.
* [[1817]]: Russia commences its [[Caucasian War|conquest of the Caucasus]].
* [[1820]]: [[Revolutions of 1820]] in Southern Europe
* [[1821]]–[[1830]]: [[Greek War of Independence]] against the [[Ottoman Empire]]. 
* [[1825]]–[[1830]]: [[Java War]] begins.
* [[1826]]–[[1828]]: After the final [[Russo-Persian War (1826–1828)|Russo-Persian War]], the [[Qajar dynasty|Persian Empire]] took back territory lost to Russia from the previous war.
* [[1828]]–[[1832]]: [[Black War]] in [[Tasmania]] leads to the near extinction of the [[Tasmanian aborigines]]
* [[1830]]: [[July Revolution]] overthrew old line of Bourbons.
* [[1830]]: [[November Uprising]] in [[Poland]] against [[Russia]].
* [[1830]]: [[Belgian Revolution]] results in [[Belgium]]'s independence from [[Netherlands]].
* [[1830]]: End of the Java War. The whole area of Yogyakarta and Surakarta Manca nagara Dutch seized. 27 September, Klaten Agreement determines a fixed boundary between Surakarta and Yogyakarta and permanently divide the kingdom of Mataram was signed by Sasradiningrat, Pepatih Dalem Surakarta, and Danurejo, Pepatih Dalem Yogyakarta. Mataram is a de facto and de yure controlled by the Dutch East Indies.
* [[1831]]: [[French rule in Algeria|France invades and occupies Algeria]].
* [[1831]]–[[1833]]: [[Egyptian–Ottoman War (1831–1833)|Egyptian–Ottoman War]].
* [[1832]]–[[1875]]: Regimental rebellions of Brazil
* [[1835]]–[[1836]]: [[Texas Revolution]] results in [[Texas]]'s independence from [[Mexico]].
* [[1839]]–[[1842]]: [[First Opium War]] begins.
* [[1846]]–[[1848]]: [[Mexican–American War]] leads to Mexico's cession of much of the modern-day [[Southwestern United States]].
* [[1848]]: [[French Revolution of 1848|February Revolution]] overthrew Louis Philippe's government. Second Republic proclaimed; Louis Napoleon, nephew of Napoleon I, elected president.
* [[1853]]–[[1856]]: [[Crimean War]] between France, the United Kingdom, the [[Ottoman Empire]] and Russia.
* [[1857]]: [[Indian Rebellion of 1857|Indian Rebellion]] against the [[Company Raj]]. After this the power of the [[East India Company]] is transferred to the [[British Raj|British Crown]].
* [[1859]]: [[Second Italian War of Independence|Franco-Austrian War]] is part of the wars of [[Italian unification]].
* [[1861]]–[[1865]]: [[American Civil War]] between the [[Union (American Civil War)|Union]] and seceding [[Confederate States of America|Confederacy]]. [[File:EwellsDeadSpotsylvania1864crop01.jpg|thumb|Dead Confederate soldiers. 30% of all Southern white males 18–40 years of age died in the [[American Civil War]].<ref>"''[https://archive.org/details/killinggroundpho0000hudd Killing ground: photographs of the Civil War and the changing American landscape] {{Webarchive|url=https://web.archive.org/web/20170228002928/https://books.google.com/books?id=YpAuHGkuIe0C&pg=PA&dq&hl=en |date=2017-02-28 }}''". John Huddleston (2002). [[Johns Hopkins University Press]]. {{ISBN|0-8018-6773-8}}</ref>]]
* [[1861]]–[[1867]]: [[Second French intervention in Mexico|French intervention in Mexico]] and the creation of the [[Second Mexican Empire]], ruled by [[Maximilian I of Mexico]] and his consort [[Carlota of Mexico]].
* [[1863]]–[[1865]]: [[January Uprising]] against the [[Russian Empire]].
* [[1864]]–[[1870]]: [[Paraguayan War]] ends Paraguayan ambitions for expansion and destroys much of the Paraguayan population.
* [[1866]]: [[Austro-Prussian War]] results in the dissolution of the [[German Confederation]] and the creation of the [[North German Confederation]] and the [[Austria-Hungary|Austrian-Hungarian Dual Monarchy]].
* [[1868]]–[[1869]]: [[Boshin War]] results in end of the shogunate and the founding the Japanese Empire.
* [[1868]]–[[1878]]: [[Ten Years' War]] between [[Cuba]] and [[Kingdom of Spain|Spain]].
* [[1870]]–[[1871]]: [[Franco-Prussian War]] results in the [[Unification of Germany|unifications of Germany]] and [[Italian unification|Italy]], the collapse of the [[Second French Empire]] and the emergence of a [[New Imperialism]].
* 1870: Napoleon III abdicated after unsuccessful conclusion of Franco-Prussian War. Third Republic proclaimed.
* [[1876]]: The [[April Uprising of 1876|April Uprising]] in [[Bulgaria]] against the [[Ottoman Empire]].
* [[1879]]: [[Anglo-Zulu War]] results in British victory and the annexation of the [[Zulu Kingdom]].
* [[1879]]–[[1880]]: [[Little War (Cuba)|Little War]] against Spanish rule in [[Cuba]] leads to rebel defeat.
* [[1879]]–[[1883]]: [[Chile]] battles with [[Peru]] and [[Bolivia]] over Andean territory in the [[War of the Pacific]].
* [[1880]]–[[1881]]: [[First Boer War]] begins.
* [[1881]]–[[1899]]: [[Mahdist War]] in [[Anglo-Egyptian Sudan|Sudan]].[[File:Battle of Omdurman.jpg|thumb|A depiction of the [[Battle of Omdurman]] in 1898; in the battle, [[Winston Churchill]] took part in a cavalry charge.]]
* [[1882]]: [[Anglo-Egyptian War]] British invasion and subsequent occupation of [[Khedivate of Egypt|Egypt]]
* [[1883]]–[[1898]]: [[Mandingo Wars]] between the [[French colonial empire]] and the [[Wassoulou Empire]] of the [[Mandinka people|Mandingo]] people led by [[Samory Touré]].
* [[1894]]–[[1895]]: After the [[First Sino-Japanese War]], China cedes [[Taiwan]] to Japan and grants Japan a free hand in Korea.
* [[1895]]: [[Taiwan]] is ceded to the [[Empire of Japan]] as a result of the [[First Sino-Japanese War]].
* [[1895]]–[[1896]]: [[Ethiopia]] defeats Italy in the [[First Italo–Ethiopian War]] at the [[Battle of Adwa]].
* [[1895]]–[[1898]]: [[Cuban War for Independence]] results in Cuban independence from [[Spanish Empire|Spain]].
* [[1896]]–[[1898]]: [[Philippine Revolution]] results in a Filipino victory.
* [[1898]]: [[Spanish–American War]] results in the independence of Cuba.
* [[1899]]–[[1901]]: [[Boxer Rebellion]] in China is suppressed by the [[Eight-Nation Alliance]]. 
* [[1899]]–[[1902]]: [[Thousand Days' War]] in [[Colombia]] breaks out between the "[[Liberalism|Liberales]]" and "[[Conservatism|Conservadores]]", culminating with the loss of [[Panama]] in 1903.
* [[1899]]–[[1902]]: [[Second Boer War]] begins.
* [[1899]]–[[1902]]: [[Philippine–American War]] begins.