How was the word McCarthyism formed and what did it mean?

The word McCarthyism was formed because of the controversial practises of former US Senator John McCarthy where he made some unconfirmed allegations.

The word McCarthyism means to make an accusation of disloyalty against someone without proof or based on flimsy evidence.

answer: ensure protection from communism

explanation:

the north atlantic treaty was largely dormant until the korean war initiated the establishment of nato to implement it, by means of an integrated military structure: this included the formation of supreme headquarters allied powers europe in 1951, which adopted the western union's military structures and plans.