Answer:
He was the chairman of the Student Nonviolent Coordinating Committee (SNCC) from 1963 to 1966. Lewis was one of the "Big Six" leaders of groups who organized the 1963 March on Washington. He fulfilled many key roles in the civil rights movement and its actions to end legalized racial segregation in the United States.
The name for this idea is "Domino Effect" - this is a theory that says that if one country falls to Communism the neighboring countries would also fall to Communism, much like pieces of Dominos fall when a neighboring piece fell.
This theory was important in the Foreign politics of the US during the cold war.
Answer:
The Union strategy to win the war did not emerge all at once. This strategy, known as the Anaconda Plan, would eliminate the possibility of Confederate help from abroad.
Explanation: