Answer:
destruction or slaughter on a mass scale, especially caused by fire or nuclear war.
Explanation:
The Holocaust, also known as the Shoah, was the genocide of European Jews during World War II. Between 1941 and 1945, Nazi Germany and its collaborators systematically murdered some six million Jews across German-occupied Europe, around two-thirds of Europe's Jewish population.
Any options? A reason US joined the war was because German subs destroyed lusitania which had Americans on it. That's one of the main reasons we joined the war, if that's a option for your question then that's it.
If that is not a option let me know and i can further assist
9/11 Commission - <span>National Commission on Terrorist Attacks upon the United States; this bipartisan, independent group was authorized by Congress and President Bush in 2002 to study the circumstances surrounding the September 11 terrorist attacks, including preparedness and the immediate response. It's 2004 report includes recommendations designed to guard against future attacks</span>
