Richard Sorge (4 October 1895 – 7 November 1944) was a German journalist and Soviet military intelligence officer, active before and during World War II, working undercover as a German journalist in both Nazi Germany and the Empire of Japan. His codename was "Ramsay" (Russian: Рамза́й). A number of famous personalities considered him one of the most accomplished spies. Sorge is most famous for his service in Japan in 1940 and 1941, when he provided information about Adolf Hitler's plan to attack the Soviet Union.