A boom operator on a KC-135 tanker earned two Distinguished Flying Crosses on recent combat missions, the Air Force confirmed this week, a rare double-award of the military’s top medal for flight.

Abstract: Since the mid-19th century, the four-color theorem has been regarded as a highly controversial topic within mathematical history due to its intuitive simplicity but difficulty in proving, ...

The Pentagon has added Operation Epic Fury to its casualty database, as of April 3 showing 365 U.S. troops wounded in action and 13 killed. The update marks the first time the Department of Defense ...

An Editor at Large: Columnist Gerard Baker looks at the nature of asymmetric warfare, and makes the case that Iran knows it can't beat the U.S. and Israel in a straight fight. Instead, it aims to ...

WSJ’s Shelby Holliday breaks down the training, equipment and operations of the Marine Corps’ Expeditionary Units as several get deployed to the Middle East amid a war with Iran. Photo: Lance Cpl.