Countries of World War I

there are actually Quite a lot of countries involved in ww1

Great Britain (Allies

America (Allies, joined in april, 1917)

Germany (Central powers)

France (Allies)

Russia (Allies, left in February 1917 due to Russian Revolution)

Turkey (Central powers)

Italy (Allies)

Romania (Allies)

Serbia (Allies

Greece (Allies)

Austria-Hungary (Central powers)

Bosnia (Central powers)

Bulgaria (Central powers)

British Empire (Allies)

Belgium (Allies)

Portugal (Allies)

hope this helps you :-)