Answer:
Between 1970 and 1973, during the Vietnam War, the United States bombed much of the countryside of Cambodia and manipulated Cambodian politics to support the rise of pro-West Lon Nol as the leader of Cambodia. The Khmer Rouge used the United States’ actions to recruit followers and as an excuse for the brutal policies they exercised when in power.
Explanation:
Reagan flexed our power abroad and regained our standing as a nation that people don't **** with, in addition to presiding over an economic boom at home.
Nixon reopened relations with Communist China.
Bantu introduced several crops while migrating across Africa, yams, sorghum and millet.
A - it taught him how to lay railroad tracks with steel