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Japan competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. Since the nation's official debut in 1912, Japanese athletes had appeared at every Summer Olympic Games in the modern era, except for two editions; they were not invited to the 1948 Summer Olympics in London because of the nation's role in World War II, and were also part of the United States-led boycott, when Moscow hosted the 1980 Summer Olympics.