Although Japan's foreign-policy was closely linked to the United States during the Cold War, the city of Tokyo hosted the 1964 Summer Olympics in the spirit of peaceful engagement with the entire international community, including the Communist states. The goals were to demonstrate to the world that Japan had fully recovered from the war, had disavowed imperialism and militarism, welcomed high-caliber sports, and sought to engage the peoples of the world on a grassroots level. Sports were kept entirely separate from politics. Enormous energy and expense was devoted to upgrading the cities physical infrastructure, including new buildings, highways, stadiums, hotels, airports and trains. There was a new satellite to facilitate live international broadcast. The event proved a great success for the city and for Japan as a whole, with no untoward incidents. Japan's foreign-policy was expanded to include sports diplomacy as the nation sent teams to international competitions across the globe.