For their own interests
Axis: Germany, Japan, Italy Allies: America, England, France, Australia etc.
World War 1: At first, Italy was in alliance with Germany and Austria- Hungary, but then later on, when war has developed it became neutral. World War 2: Italy was with Germany, both of these countries were nazi countries.
The US, England, and Russia were known as the allied countries and fought against Germany and Italy who were known as axis countries in World War II
Britain, France, Russia, Japan and Italy. America did not join the war until mid-1917 and the only real contribution it made was in numbers of soldiers sent.
The Central Powers during World War I were:GermanyAustria-HungaryThe Ottoman EmpireBulgaria (joined 1915 after the start of World War I)*Originally Germany and Austria-Hungary formed the Triple Alliance with Italy, but Italy did not join them in the war and later fought against the Central Powers.
Germany, Russia, Italy
Germany, Italy and Spain
Japan - Italy - Germany .
None, in fact they were flung out of the African countries they had conquered before the war.
Britain, France, Russia, Japan and Italy. America did not join the war until mid-1917 and the only real contribution it made was in numbers of soldiers sent.
Italy and Turkey were fighting over Libya till 1912