Answer:
A term coined by Raphael Lemkin in his 1944 book Axis Rule in Occupied Europe. Likely based off of the Holocaust and his personal experience with the Armenian massacres
B, he was known for his serious attitude and deep thinking
Thousands of Allied troops were marched to their death as they walked to their prison camp. They were treated miserably, often hit and told to march all day.
Very few of the many Allied troops that marched survived
hope this helps