Participants in World War I The Entente Forces Albania Andorra emocratic Republic of Armenia Belgium Bolivia Brazil United Kingdom British Empire Australia Australia Canada Canada India Indian Empire (Now Bangladesh, India and Pakistan) Dominion of Newfoundland Newfoundland New Zealand Union of South Africa United Kingdom of Great Britain and Ireland United Kingdom British crown colonies Republic of China Costa Rica Bohemia Czechoslovak Legions Cuba Ecuador France Guatemala Haiti Honduras Italy Japan Liberia Montenegro Nicaragua Panama Peru Portugal Romania Russian Empire San Marino Serbia Siam (now Thailand) Uruguay United States United States of America & Yugoslavia- Macedonia, Serbia, Croatia, etc The Central Powers Austria-Hungary Bulgaria Germany Ottoman Empire Neutral states Afghanistan- Did not support or oppose any nation. Argentina Colombia Denmark - Traded with both sides. El Salvador Ethiopia Luxembourg - Never declared war on the Central Powers despite being invaded and occupied by Germany. Mexico - Declined an alliance with Germany (see Zimmermann Telegram). Netherlands - An Ally of the UK by treaty. Norway - Gave naval assistance to the UK. Paraguay Persia - Occupied by British and Russian troops. Spain - Also treaty bound ally to the UK. Sweden - Financially supported Germany. Switzerland - Switzerland did declare a "state of siege". Venezuela- Supplied the Allies with oil. Participants in World War II Afghanistan Albania Andorra Argentina Armenia Australia Austria Bahrain Belgium Bolivia Brazil Bulgaria Canada Ceylon Chile China Colombia Costa Rica Cuba Czechoslovakia Denmark Dominican Republic Ecuador Egypt El Salvador Estonia Ethiopia Fiji Finland France Free France Vichy France Germany Georgia Gibraltar Greece Guatemala Haiti Honduras Hong Kong Hungary India Andaman & Nicobar Islands Indonesia Iceland Iran Iraq Ireland Éire Northern Ireland Italy Japan Korea Laos Latvia Lebanon Liberia Liechtenstein Lithuania Luxembourg Malaya Malta Manchukuo Mexico Monaco Mongolia Morocco Nepal Netherlands Netherlands East Indies Newfoundland New Zealand Nicaragua Northern Rhodesia Norway Oman Panama Paraguay Peru Philippines Poland Portugal Macau Portuguese Timor Romania San Marino Saudi Arabia Singapore South Africa Southern Rhodesia Soviet Union Spain Sweden Switzerland Syria Tannu Tuva Thailand Tonga Transjordan Turkey United Kingdom Channel Islands United States of America Uruguay Venezuela Yemen Yugoslavia -Macedonia, Serbia, Croatia, etc * 2.1 Afghanistan * 2.2 Albania * 2.3 Andorra * 2.4 Argentina * 2.5 Armenia * 2.6 Australia * 2.7 Austria * 2.8 Bahrain * 2.9 Belgium * 2.10 Bolivia * 2.11 Brazil * 2.12 Bulgaria * 2.13 Canada * 2.14 Ceylon * 2.15 Chile * 2.16 China * 2.17 Colombia * 2.18 Costa Rica * 2.19 Cuba * 2.20 Czechoslovakia * 2.21 Denmark * 2.22 Dominican Republic * 2.23 Ecuador * 2.24 Egypt * 2.25 El Salvador * 2.26 Estonia * 2.27 Ethiopia * 2.28 Fiji * 2.29 Finland * 2.30 France * ** 2.30.1 Free France ** 2.30.2 Vichy France * 2.31 Germany * 2.32 Georgia * 2.33 Gibraltar * 2.34 Greece * 2.35 Guatemala * 2.36 Haiti * 2.37 Honduras * 2.38 Hong Kong * 2.39 Hungary * 2.40 Iceland * 2.41 India * ** 2.41.1 Andaman & Nicobar Islands * 2.42 Indonesia * 2.43 Iran * 2.44 Iraq * 2.45 Ireland * ** 2.45.1 Éire ** 2.45.2 Northern Ireland * 2.46 Italy * 2.47 Japan * 2.48 Korea * 2.49 Laos * 2.50 Latvia * 2.51 Lebanon * 2.52 Liberia * 2.53 Liechtenstein * 2.54 Lithuania * 2.55 Luxembourg * 2.56 Malaya * 2.57 Malta * 2.58 Manchukuo * 2.59 Mexico * 2.60 Monaco * 2.61 Mongolia * 2.62 Morocco * 2.63 Nauru * 2.64 Nepal * 2.65 Netherlands * ** 2.65.1 Netherlands East Indies * 2.66 Newfoundland * 2.67 New Zealand * 2.68 Nicaragua * 2.69 Northern Rhodesia * 2.70 Norway * 2.71 Oman * 2.72 Panama * 2.73 Paraguay * 2.74 Peru * 2.75 Philippines * 2.76 Poland * 2.77 Portugal * ** 2.77.1 Macau ** 2.77.2 Portuguese Timor * 2.78 Romania * 2.79 San Marino * 2.80 Saudi Arabia * 2.81 Singapore * 2.82 South Africa * 2.83 Southern Rhodesia * 2.84 Soviet Union * 2.85 Spain * 2.86 Sweden * 2.87 Switzerland * 2.88 Syria * 2.89 Tannin Tuba * 2.90 Thailand * 2.91 Tonga * 2.92 Transjordan * 2.93 Turkey * 2.94 United Kingdom * ** 2.94.1 Channel Islands * 2.95 United States of America * 2.96 Uruguay * 2.97 Vatican * 2.98 Venezuela * 2.99 Yemen * 2.100 Yugoslavia-Macedonia, Serbia, Croatia, etc
germany
Germany, Ottoman Empire, Austria-Hungary, and Italy
There were many countries that fought with us (on our side) in World War One. Assuming you mean the United States as "us," we were part of the Allied Nations. We joined the war in April of 1917 with countries including Great Britain, Russia and France for the most part. There were many other minor countries on our side such as Japan and Italy. We were against the Alliance of Germany, Austria-Hungary, and Turkey.
Technically, the Russian Empire fought in World War One, while the U.S.S.R. fought in World War Two. In both wars, it fought on the side of the Allies.
Some countries have accurace (or as accurate as possible) records of who fought in their forces in World War I; but some countries for various reasons have little or no records of this information.
germany
The Allied Powers.
Italy and Turkey.
Japan and Italy fought against Germany in World War 1 but were on Germany's side in World War 2
poland,italy,belgium,switzerland
Like anybody cares what countries world war1 was fought am I right?
Italy who were originally on the side of the germans who then moved to the side o f the british.
Germany, Ottoman Empire, Austria-Hungary, and Italy
Germany, Japan, and Italy. Those are the biggest Axis Powers, but there were probably more lesser know countries that fought for the Axis
USA & Borneo,
The two side that fought in World War 2 are the allies and axis.
There were many countries that fought with us (on our side) in World War One. Assuming you mean the United States as "us," we were part of the Allied Nations. We joined the war in April of 1917 with countries including Great Britain, Russia and France for the most part. There were many other minor countries on our side such as Japan and Italy. We were against the Alliance of Germany, Austria-Hungary, and Turkey.