The 1940 Summer Olympics, officially known as the Games of the XII Olympiad, was a planned international multi-sport event scheduled to have been held from September 21 to October 6, 1940 in Tokyo City, Empire of Japan, and later rescheduled for July 20 to August 4, 1940 in Helsinki, Finland following the outbreak of the Second Sino-Japanese War in 1937. They were ultimately canceled because of World War II alongside the 1940 Winter Olympics in Sapporo, Empire of Japan, and were the third games to be canceled due to war.

The Messerschmitt Me 261 was a long-range reconnaissance aircraft designed in the late 1930s. It looked like an enlarged version of the Messerschmitt Bf 110. It was not put into production; just three Me 261s were built and used primarily for testing and development purposes.