Holocaust was the state sponsored, systematic persecution and annihilation of European Jewry by Nazi, Germany, and its collaborators between 1933 and 1945.
Why it took so long for U.S. to get involved ?
Different Nazi/Germany concentration Camps
They had about 20,000 different concentration camps that held millions of victims.
What does Antisemitism mean?
Antisemitism means the prejudice against or hatred of Jews.