1809-1826 — Wars for Latin American Independence: Spain versus Mexico, Paraguay, Ecuador, Bolivia, Venezuela, and Guatemala
1812-1815 — War of 1812: United States versus Britain
1815 — The Hundred Days: Britain, Austria, Prussia, and Russia versus France
1821-1829 — Greek War for Independence: Greece versus Turkey
1822-1831 — First Ashanti War: Britain versus Ashanti people (of modern Ghana)
1824-1826 — First Burmese War: Britain versus Burma
1826-1828 — Russo-Persian War
1828-1829 — Russo-Turkish War
1830–1847 — French conquest of Algeria
1831–1832 — Black Hawk War: United States versus the Sac and Fox tribes
1832 – 1833 — Turko-Egyptian War
1834 – 1839 — Carlist Wars: Spain versus the forces of the pretender Don Carlos
1835-1842 — Seminole War: United States versus the Seminole tribe
1836 — Texas War of Independence: Texas versus Mexico
1838-1842 — First Afghan War: Britain versus Afghanistan
1839-1842 — First Opium War: Britain versus China
1844-1848 — Maori War: Britain versus natives of New Zealand
1845-1849 — Sikh Wars: British East India Company versus the Sikhs in India
1846-1848 — Mexican War...