USA HISTORY

Detailed explanation-1: -On September 27, 1940, Germany, Italy, and Japan signed the Tripartite Pact. This pact formalized the alliance between the three countries, which subsequently were referred to as the Axis powers.

Detailed explanation-2: -The main combatants were the Axis powers (Germany, Italy, and Japan) and the Allies (France, Great Britain, the United States, the Soviet Union, and, to a lesser extent, China).

Detailed explanation-3: -The first step was the protocol signed by Germany and Italy in October 1936, after which Italian leader Benito Mussolini declared that all other European countries would thereafter rotate on the Rome–Berlin axis, thus creating the term “Axis".