If you learn to play cards, you have acquired a

skill on odyssey

Explanation:

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.

i believe that the answer to the question provided above is that the role of campaign committees is to act as a bridge between state and local campaigns.