Tripartite Pact (Rome–Berlin–Tokyo Axis) Signed: September 27, 1940

The Tripartite Pact, commonly known as the Rome–Berlin–Tokyo Axis, was signed in Berlin on 27 September 1940 by:

• Germany – Foreign Minister Joachim von Ribbentrop
• Italy – Foreign Minister Galeazzo Ciano
• Japan – Ambassador Saburō Kurusu

The treaty formalized the Axis alliance, pledging mutual military, economic, and political cooperation for ten years. It was later joined by Hungary, Romania, Slovakia, Bulgaria, Yugoslavia (briefly), and Croatia.

The pact aimed to deter U.S. entry into World War II but instead signaled a global alignment that shaped the war's expansion into the Pacific and Mediterranean theaters.