In the lower South the majority of slaves lived and worked on cotton plantations. Most of these plantations had fifty or fewer slaves, although the largest plantations have several hundred. Cotton was by far the leading cash crop, but slaves also raised rice, corn, sugarcane, and tobacco.
So slaves did a lot of heavy farm work and were household servants.
Baron Von Steuben drilled Washington's army at Valley Forge during the revolutionary war. he volunteered to help train the continental army so that they would know how to fight the war since they were untrained and outnumber compared to the British troops who were trained and could send in reinforcements in case of an emergency.
Answer: The Red Ball Express was a famed truck convoy system that supplied Allied forces moving quickly through Europe after breaking out from the D-Day beaches in Normandy in 1944.
Explanation: :)
Because they needed workers. Gives a sec to elaborate