When did Italy enter the war against the allies in World War 2?
Italy declared war on France and Britain on 10 June 1940.
During World War I, France was allied with Great Britain, Italy, and Russia. Although Italy had a treaty with Germany it reneged and joined the Allies. The United States would also later enter the war on the side of the Allied Forces. The enemies of the Allied Forces were the Central powers of Germany, the Austrian-Hungary Empire, the Ottoman Empire and Bulgaria.
Germany's major allies were Austria-Hungary, the Ottoman Empire and Bulgaria. Together, they were known as the Central Powers. Italy was allied with Germany and Austria-Hungary, but chose not to enter the war when it started. Later, Italy switched sides and joined the war as part of the Allied Powers, mainly to fight against their old enemy Austria-Hungary.