World War II Invasions: Territories Conquered by Germany, Italy, and Japan

Germany

• Poland (Sep 1, 1939)
• Denmark, Norway (Apr 9, 1940)
• Belgium, Netherlands, Luxembourg, France (May 10, 1940)
• Yugoslavia, Greece (Apr 6, 1941)
• Soviet Union (Jun 22, 1941)

Italy

• Ethiopia (Oct 3, 1935)
• Albania (Apr 7, 1939)
• Greece (Oct 28, 1940)
• Yugoslavia (Apr 6, 1941)
• Soviet Union (Jun 22, 1941)

Japan

• Manchuria (Sep 19, 1931)
• China (Jul 7, 1937)
• French Indochina (Sep 22, 1940)
• Thailand, Malaya, Philippines, Guam, Wake Island, Hong Kong (Dec 8, 1941)
• Singapore (Feb 15, 1942)
• Dutch East Indies (Mar 8, 1942)
• Burma (Mar 1942)

Note

Dates mark the start of major invasions. Many territories saw prolonged occupation, resistance, and eventual liberation (1943–1945).