American strategic options for ending the war against Japan in 1945 offered a choice of horrible possibilities.

The African American Black Panthers of the 761st Tank Battalion completed their distinguished combat record by breaching Germany's Siegfried Line and crossing the Rhine in 1945.

Thousands of students ask—we answer! Let's dig into the top five questions about the Manhattan Project.

Frank Kameny saw combat in Europe during the war, only to return home to face discrimination from the very country he served.

Between 1933 and 1945, the Nazi regime persecuted Roma across Europe, killing over 250,000 Romani people and sterilizing around 2,500.