The farmland of the fertile crescent was fertile because?

It was fertile because there are water sources on both sides of the land, so many things could bring the waters to the land making it fertile.

the answer is

a) revise existing treaties

b) do away with political alliances

c) prevent the spread of communism

d) bring an end to european colonization

the main goal of the southeast asia treaty organization was to prevent the spread of communism in southeast asia.

answer; reactive is your answer; good luck