Countries around the world began to realize the Cold War era: March 12, 1947 to December 25, 1991 Main distribution countries: North Atlantic Treaty Organization, Chinese character cultural circle, Latin America From March 12, 1947 to December 25, 1991, the nations of the world began the Cold War era, beginning with the Truman Doctrine and ending with the collapse of the Soviet Union. Countries with a nominal GDP of more than 1 trillion USD in the world are mainly distributed in the North Atlantic Treaty Organization, Chinese Character Cultural Circle, Latin America and other countries, and only 17 countries in 2021. 1969: ???? 1978: ???? 1986: ???? 1988: ???? 1990: ???? and ???? 1998: ???? 2004: ???? and ???? 2006: ???? and ???? 2007: ????, ????, ???? 2008: ???? 2017: ???? 2021: ???? Countries with a nominal GDP of more than 1 trillion USD in the North Atlantic Treaty Organization: ????, ????, ????, ????, ????, ????, ????, ???? Countries with a nominal GDP of more than 1 trillion USD in the Chinese character cultural circle: ????, ????, ???? Countries in Latin America with a nominal GDP of more than 1 trillion USD: ????, ????