there are not exactly 5 allies in ww2. but i think the alliance and co-operation between england, america and in someways france also, will have to be the most powerful. if spain had entered the axis then i would say that the axis powers would have been most powerful. I see you don't even mention the Soviet Union, which was responsible for over 75% of German deaths in combat. The most powerful of the Allies in World War II were: the United Kingdom, United States and the USSR. The British Empire if counted as one nation would be the most in the period. France was invaded and surrendered; excluding it from this list. There were not five or more main Allies in the war. In reference to the other two answers here: * The USSR itself was not responsible for the deaths of the so many German soldiers but the awful weather and, therefore, hypothermia
* ENGLAND DID NOT FIGHT IN WORLD WAR II AS AN INDEPENDENT ENTITY! Rather it was part of the United Kingdom which, in turn, was part of the British Empire. The United Kingdom itself consists of England, Scotland, Wales and Northern Ireland! In order to impress upon you how silly it is to refer to the UK as England; a suitable analogy would be that someone referring to the whole of the United States simply said "Texas." I plea to anyone that reads this that they remember this as I, as a Scot, can feel marginalised when I see films from the United States referring to the Queen of England.
Germany was our most powerful Allie.
The most powerful country was Germany,Italy,and japan
The most powerful Allies were the Soviet Union, Great Britain, and France. The US was also allied with Canada and Turkey.
The Allied Forces in World War 2 had more allies than the Axis did.
After the first world war the USA became the most powerful one.
World war 2
The Japanese bombed the United States causing them to join the war. The Allies gained a very powerful allie in the War when U.S.A came in
Who were the first allies in world war 1?
The United States emerged from World War II as the richest, most powerful nation on Earth.
It was a cause of World War 1, exacerbated by the treaties that bound powerful nations to defend smaller allies, leading to the inclusion of most of Europe in the war, along with the Ottoman Empire (one of the losers, as it dissolved after the war with the independence of Turkey).
Russia was Serbia's main ally during World War I. Russia had a powerful army and powerful allies as well.
The Atomic Bomb which was capable of completely destroy a city was the most powerful bomb in World War 2 and still is now.
Russia, Britain and France were the Allies in World War 1.
Allies in World War II
Germany was a member of the Axis, and so an enemy of the Allies during World War 1 and World War 2. Today, Germany is the most powerful nation in Europe, a founding member of the European Union, and a strong ally of the US.
The two most powerful would be the United States and Russia, though the United States emerged as the only true world power after the war, Russia was still the second most powerful country (and still is today).
Which World War?
USSR and USA.