"Guns" were not an African good traded in exchange for European goods, since Africa did not have the factories need to assemble the guns, which were instead made in Europe.
Some people disagree with using agent orange during the Vietnam war because the agent was dangerous and had adverse effects on both the enemy and the American troops. Agent orange was a powerful chemical used for defoliation during the Vietnam war to eliminate forest cover. It was later discovered that the chemical caused serious health issues for the service men, their families as well as the enemy. Health issues experienced include: birth defects, tumors, rashes, cancer, etc.
D. architecture was one of the basic features of early civilizations.
They ambushed the Mongol Empire in China.
In general, President Abraham Lincoln appointed Ulysses S. Grant to lead the Union armies after firing other generals because "<span>C. Grant was willing to outlast the enemy even at the cost of high casualties"</span>