Rosa parks arrest on the montgomery alabama bus december 1955 sparked the boycott over 1955 to 1956 to make a mass protest to the supreme court to end the segregation rule on public buses
Answer,
The Association of Southeast Asian Nations
Explanation,
The Association of Southeast Asian nations has ten members which include;Cambodia,Brunei,Laos,Thailand,Vietnam,Singapore,Philippines,Malaysia,Myanmar,Indonesia.it helps its member to establish political and economic stability among members. It also promotes economic growth and peace among its members which leads to expansion of trade.
The Truman Doctrine was established to aid nations that were fighting against communism. President Truman highly disagreed with communism, which is what lead him to creating the doctrine.