text: This is LONG!\nDuring the First World War the Alliances were:\n"Allies" (Triple Entente):\n*Belgium (including Belgian colonial forces) \n*British Empire \n**Great Britain\n*The Dominions of the British Empire: \n**Australia \n**Canada \n**New Zealand \n**Newfoundland (not part of Canada at the time) \n**South Africa \n*British Crown Colonies, including: \n**The Indian Empire (later India, Pakistan and Bangladesh) \n*Sri Lanka \n*Nepal \n*Myanmar and \n*British Malaya \n*France (including French colonial forces) \n*Italy (from 23 May 1915) \n*Romania (from 27 August 1916) \n*Russian Empire (until 1917) \n*Serbia \n*United States (from 7 April 1917)  \n*Greece (from 1917) \n*Montenegro (until 1916) \n*Portugal (from March 1916) \nas well as:\nAndorra \nFirst Republic of Armenia \nBrazil \nChina (from 1917) \nCosta Rica \nCzechoslovak Legions \nCuba \nGuatemala \nHaiti \nHonduras \nJapan \nLiberia \nNicaragua \nPanama \nSan Marino \nSiam (now Thailand) \n\nThe Central Powers were:\n*Germany\n*Austria-Hungary\n*The Ottoman Empire \n*Bulgaria\n\nDuring the Second World War the Allies were (dates are shown for when they entered the war against the Axis):\nFollowing the German invasion of Poland\n Poland: 1 September 1939 \n United Kingdom: 3 September 1939 \n France: 3 September 1939 \n Australia: 3 September 1939 \n New Zealand: 3 September 1939 \n The Indian Empire: 4 September 1939 \n \n Nepal: 4 September 1939 \n Newfoundland: 4 September 1939 \n Tonga: 4 September 1939 \n South Africa: 6 September 1939 \n Canada: 10 September 1939 \n\nAfter the end of the Phony War\n Denmark: 9 April 1940 \n Norway: 9 April 1940 \n Belgium: 10 May 1940 \n Luxembourg: 10 May 1940 \n \n Netherlands: 10 May 1940 \n Free France: 18 June 1940 \n Greece: 28 October 1940 \n Kingdom of Yugoslavia: 6 April 1941 \n Soviet Union: 22 June 1941 \n Tannu Tuva: 25 June 1941 \n\nAfter the attack on Pearl Harbor\n Panama: 7 December 1941 \n Philippines: 7 December 1941 \n Costa Rica: 8 December 1941 \n Dominican Republic: 8 December 1941 \n \n El Salvador: 8 December 1941 \n Haiti: 8 December 1941 \n Honduras: 8 December 1941 \n Nicaragua: 8 December 1941 \n United States of America: 8 December 1941 \n Republic of China: 9 December 1941 \n \n Guatemala: 9 December 1941 \n Cuba: 9 December 1941 \n Czechoslovakia: 16 December 1941 \n Mexico: 22 May 1942 \n Brazil: 22 August 1942 \n Ethiopia: 14 December 1942 \n Iraq 1943: 17 January \n Bolivia: 7 April 1943 \n \n Iran 1943: 9 September \n Italy: 13 October 1943 \n Colombia: 26 November 1943 \n Liberia: 27 January 1944 \n\nAfter D-Day\n Romania: 25 August 1944, (formerly a member of the Axis powers) \n Bulgaria: 8 September 1944, (formerly a member of the Axis) \n San Marino: 21 September 1944 \n Albania: 26 October 1944 \n Hungary: 20 January 1945, (formerly a member of the Axis) \n Bahawalpur: 2 February 1945 \n Ecuador: 2 February 1945 \n Paraguay: 7 February 1945 \n Peru: 12 February 1945 \n \n Uruguay: 15 February 1945 \n Venezuela: 15 February 1945 \n Turkey: 23 February 1945 \n Lebanon: 27 February 1945 \n Saudi Arabia: 1945 March \n Argentina: 27 March 1945 \n Chile: 11 April 1945 \n People's Republic of Mongolia: 9 August 1945 \n\nThe Axis powers were:\n*Nazi Germany\n*Italy\n*Japan\n*Thailand\n*Hungary\n*Bulgaria\n*Romania (until 23 August 1944)\n*Croatia\n*Vichy France\n*Finland\nThe Following Nations were occupied by the Axis powers:\n*Albania\n*Austria (annexed during the Anschluss)\n*Belgium\n*Denmark\n*Ethiopia\n*"Lokot Republic" the occupied areas of Russia\n*Luxembourg\n*Manchuria (a Japanese client state)\n*Provisional Government of Free India (which was a rebel government against the Japanese in the occupied areas of British India)\n*Vichy France\n\nHope this helps,