World War 2
World War 1
Britain in WW2

Who declared war in World War 2 and when?

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February 26, 2007 3:27AM

Britain and France declared war on Germany. Canada, Australia, New Zealand and South Africa declared war on Germany. Italy declares war on the Allies Germany, Finland, Hungary and Romania declared war on Soviet Union. Britain declared war on Finland, Hungary and Romania United States declares war on Japan Germany and Italy declares war on United States Italy declares war on Germany (changed sides) Romania declares war on Germany (changed sides) Soviet Union declares war on Japan I think you missed out Britain, Australia and New Zealand declaring war on Japan. Oh, and don't forget that Costa Rica declared war on Germany ... It provided the government of Costa Rica with an opportunity to seize German property.