The 20th century marked a major turning point in the nature of warfare. The murmurs of industrialized warfare were being felt as early as the 1840s, but the First World War was a shock to the system.

Add Yahoo as a preferred source to see more of our stories on Google. Rusting fuel drums and vehicles remain at an abandoned U.S. World War II base in Greenland. Posnov/Moment via Getty Images ...

During a tour last summer, I was surprised to discover some fascinating facts about West Point Military Academy that include quirky traditions, hidden history ...