In general, allies are individuals, groups or nations that have joined together in an association for mutual benefit or to achieve some common or purpose. Allies spelled with a capital "A", usually denotes the countries who fought together against the Central Powers in World War I, the Allies of World War I or those who fought against the Axis Powers in World War II, as in "Allies of World War II." The allies of World War II are France, Poland, Canada, Australia, the United Kingdom (and Empire)… (More on Allies)