Union organizer in the late 19th century
· socialist candidate for u. s. president five times
· an organizer of the pullman strike in 1894
· anti-war activist

A)Eugene V. Debs

Explanation:Eugene V. Debs was a mainstay in American politics and society for over 60 years, fighting for the working man’s rights. His anti-war activism during World War I landed him in the Atlanta Penitentiary in 1919, from which he ran for President in 1920… getting close to 4% of the popular vote.

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.

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.