1947
it ended in 1945 so thats when peace was declared
There has never been a World War 3.
September, 2 1945
The Britain and the French declared war on the German when the German were at war with Poland. They all did not have a peace treating so they could not have peace.
world war 3 peace \/
The prime minister of Britain declared war in Germany. The world war 2 started by Germany in a unprovoked attack on poland.
War was declared.
World War 1 and World War 2 were the last declared wars that the US participated in.I'm sure however that there have been small regional warsafter World War 2, that the US did not participate in that were declared wars by the regional participants in those wars.
Cuba and the Allied forces declared war and fought against Germany, Japan, and Italy during world war two.
September 2, 1945, when Japan signed the formal declaration of surrender, ending WW 2.
England and France declared war on Germany after it invaded Poland on Sept 1, 1939.
The US declared war on Germany on Dec 11th 1941, (two days after Germany declared war on the US). Everything since that date to the present is after.