Loyalty oaths were declarations required by government agencies and organizations in the United States during the Cold War, primarily to ensure allegiance to the nation and to reject any communist ideology. These oaths became a tool for rooting out perceived disloyalty and were often used in the context of McCarthyism, leading to widespread fear and paranoia about communism infiltrating American society. The implementation of these oaths raised significant concerns about civil liberties and the suppression of dissenting views during a time of intense political pressure.