allies war of 1812
NVA/VC vs US/allies
Its enemies were the Central Powers including Austria-Hungary, Germany and the Ottoman Empire. Its allies were the Entente Powers which included the US, the UK, Italy and France.
The US and the Allies won World War 2.
It all depends on the problem for why the war broke out. If a country tried to take over, then that countries allies would most likely be on that side and would be known as "enemies", while the other side would be known as allies. Some past allies would probably be allies again, like US, UK, France, Canada, etc.
The US joined the war on the side of the Allies on April 6, 1917.
Allies
Allies.
allies
Allies
japan and Italy
Russia and the US went to enemies because when the war was over, they became superpowers and divided up Germany since Germany had a falling empire. They also made up their mind that Russia wanted Communism, and the US wanted a Democracy.