The main constituents were Britain and her empire which declared war Sept 1939(Australia, New Zealand, India, Jamaica etc), France (although France had a puppet government in place by the Nazis for most of the conflict), Russia and America.
Many other countries (Canada, Korea etc) were aggressed or sent troops on the allied side but the dominance of the big 4 was illustrated when Berlin was split into 4 zones when the Nazis capitulated, one zone administered by each country.
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By name, the Allies included:
The U.S.A., U.S.S.R., the U.K. and the British Empire (including practically all countries now a part of the British Commonwealth of Nations), France and her possessions, Belgium, The Netherlands and the Dutch Empire (e.g. Malaysia), China, Denmark, Norway, Thailand, plus almost two dozen other counties by 1942.
Later in the war, it included many former Axis countries: Bulgaria, Romania and Italy, to name several.
Central Power and Allies.
Leaders knew that if they declared war, their allies had to join the fight with them.
The Entente (Sometimes called the "Allies") and the Central Powers.
At the end many countries where in poverty. Germany had to pay a debt to the allies which ended a little before and during world war two, but continued after and still does.
The Allies and the Axis were the two sides who fought each other in the war
World War 2 was of two alliances. The Axis, and the Allies. Great Britain and U.S.A were on the Allies side.
Allies and Axis.
Axis and allies.
World War Two
The two side that fought in World War 2 are the allies and axis.
The Allies and the Axis.
Axix and Allies
If you are asking if Italy was part of the Allies in World War Two, the answer is no. However, if you want to find the allies of Italy, the main one was Germany.
World War two was a major war in human history. It lasted about 6 years, many countries were involved. Mainly divided into Allies and Axis. The Allies side won the war.
The allies were successful in the Battle of Britain.
Central Power and Allies.
The Central Powers and the Allies.