Answer:
The advantages that the United States had were that it was wealthier, larger, and more populous than Mexico. America also had industries to supply it with arms and ammunition as well as a larger and better navy and more advanced artillery.
I presume you are talking about the 1930s, and if so, the economy during the 30s was in shambles and the period was called the great depression. Unemployment was at an all time high and people were starving due to extreme poverty.
World War I has the closest date. So D
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.