What does social mobility mean

Social mobility means the movement between social classes

Explanation:

i'm asking the same thing i asked this other cat all of

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.