What two ideologies created tension between the us and the USSR?

The two primary ideologies that created tension between the United States and the USSR were capitalism and communism. The U.S. promoted capitalism, emphasizing free markets, private property, and individual freedoms, while the USSR advocated for communism, which sought to eliminate class distinctions through state ownership of resources and central planning. This fundamental ideological clash fueled distrust and competition, leading to the Cold War, marked by military confrontations, political rivalry, and economic competition. The differing visions for governance and society ultimately defined their relationship throughout the 20th century.