Will mark brianly what does jefferson mean when he says, “the tree of liberty must be refreshed from time to time with the blood of patriots and tyrants

Jefferson, much maybe to his later chagrin, is stating that revolution is occasionally necessary to keep governments responsive to the liberty of its people.

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.