This WW1 M17 trench knife and scabbard, worn and rusty from years of neglect, gets a full restoration. See how expert techniques restore its function and honor its history.

The First World War, also known as "The Great War" or "The War to End All Wars," was one of the most devastating conflicts in ...

U.S. Navy and Marine combat engineers are testing how to make fortifications that can protect against tiny, deadly ...