List of wars 1900-1944

List of wars - List of wars before 1000 - List of wars 1000-1499 - List of wars 1500-1799 - List of wars 1800-1899 - List of wars 1900-1944 - List of wars 1945-1989 - List of wars 1990-2002 - List of wars 2003-current - Ongoing wars

• 1904-1905 Russo-Japanese War
• 1905 Revolution of 1905 in Russia
• 1911-1912 Turco-Italian War
• 1912-1913 Balkan Wars
  • 1912-1913 First Balkan War
  • 1913 Second Balkan War
• 1914-1918 World War I
• 1916 Easter Rising rebellion in Ireland
• 1917-1918 Russian Revolution
• 1917-1920 Estonian Liberation War
• 1918 Finnish Civil War
• 1918 Georgian-Armenian War
• 1918-1922 Russian Civil War
  • 1918 Petsamo expedition
  • 1918 Viena expedition
  • 1918-1919 Polar Bear Expedition
  • 1919 Aunus expedition
  • 1921-22 East Karelian Rising by Karelian Forest Guerillas
• 1918-1919 Polish-Ukrainian War
• 1918-1919 Great Poland Uprising
• 1919 Czechoslovak-Polish war
• 1919 Third Anglo-Afghan War
• 1919 First Silesian Uprising
• 1919-1920 Polish-Lithuanian War
• 1919-1921 Polish-Soviet war
• 1919-1921 Anglo-Irish War (aka the Irish War of Independence)
• 1919-1922 Turkish War of Independence
  • 1920-1922 Second Greco-Turkish War (aka War in Asia Minor)
• 1920 Second Silesian Uprising
• 1921 Third Silesian Uprising
• 1922-1923 Irish Civil War
• 1926-1928 Northern Expedition in China
• 1927-1937 Agrarian Revolution in China
• 1932-1935 Chaco War
• 1934-1936 Long March in China
• 1935-1936 Second Italo-Abyssinian War
• 1936-1939 Spanish Civil War
• 1937-1945 Second Sino-Japanese War
• 1939-1945 World War II
  • 1939-1940 Winter War
  • 1941-1944 Continuation War
  • 1944-1945 Lapland War
• 1941-1942 Ecuadorian-Peruvian War
• 1944-1949 Greek Civil War