Caption

Vice President Mike Pence and Speaker of the House Nancy Pelosi, D-Calif., read the final certification of Electoral College votes cast in November's presidential election during a joint session of Congress, after working through the night, at the Capitol

Caption

A soldier in Tampa, Florida, assesses the Army's One World Terrain software, which will be used to create real-time, realistic simulated terrain for soldiers to fight on

Caption

The Virginia-class attack submarine USS North Dakota.