170911-N-NQ487-183 ATLANTIC OCEAN (Sept. 11, 2017) Nicholas J. Dienna, commanding officer of the aircraft carrier USS Harry S. Truman (CVN 75), signs a national ensign that was raised at Ground Zero on the bridge of the ship. The National Ensign was raised at Ground Zero after the Sept. 11, 2001 terrorist attacks and is passed along to a different U.S. military command on the anniversary each year. (U.S. Navy photo by Mass Communication Specialist Seaman Kaysee Lohmann/Released)