History 16 World War, 1939-1945 11 Campaigns 7 Pearl Harbor (Hawaii), Attack on, 1941 4 Cosmology 3 Genocide 3 Stalingrad, Battle of, Volgograd, Russia, 1942-1943 3 more ... Exploration 2 Holocaust, Jewish (1939-1945) 2 Hue, Battle of, Huế, Vietnam, 1968 2 Jewish resistance 2 Jews 2 Khe Sanh, 2nd Battle of, Vietnam, 1968 2 Persecutions 2 Publications about Graduates 2 Rescue 2 Sightings and encounters 2 Tet Offensive, 1968 2 Unidentified flying objects 2 Vietnam War, 1961-1975 2 Anfal Campaign, Iraq, 1986-1989 1 Antiquities 1 Archaeology 1 Artists 1 Assassination 1 Astronomie 1 Astronomy 1 Atrocities 1 Body language 1 Chemical warfare 1 less ...