Answer:
Communism
Explanation:
The Truman Doctrine is an expression that designates a set of political and economic measures assumed by the American government of President Truman after the Second World War.
With the end of World War II, Europe was destroyed and weakened politically and economically, with which emerged two world powers, the United States and the Soviet Union, which represented capitalism and socialism respectively.
The Truman doctrine aimed to prevent the expansion of socialism, especially in capitalist countries weakened by war. According to Truman, it was the US's duty to defend the world of the Communists. From then on, the Cold War began, which left the world bipolarized between the two regimes until the collapse of the Soviet Union in the early 1990s, when capitalism triumphed.
