According to the video, how did previous Civil Rights movements (in the 1860s and 1960s) create more freedoms for all Americans, not just Black Americans?

nuclear fission produces the atomic bomb, a weapon of mass destruction that uses power released by the splitting of atomic nuclei the fighting in iwo jima and okinawa affected the allies' pacific strategy because truman decided to drop the atomic bomb on mainland japan.

i think that the answer is polishing peanuts