The are incident management personnel that the incident commander or unified command assign to directly support the command function.

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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.

well, there are a lot of places we get information about earth from. like science classes, websites, books, newspapers, etc.