> A concentration camp is a place where large amounts of Jews were killed. U

That's incorrect. A concentration camp is a place where a government or authority detains large numbers of people without normal legal process, usually because they belong to a particular group rather than because of individual crimes.

Historical examples:

- Nazi Germany (1933–1945)

- British camps during the Second Boer War (1899–1902)

- Imperial Japan

- United States (1942–1945)