Retired Marine Corps Chief Warrant Officer 4 William Thomas, left, and retired Navy Capt. Jerry Coffee, second from right, former prisoners of war, show respect during the singing of the national anthem at the commemorative ceremony marking the 40th anniversary of Operation Homecoming on Joint Base Pearl Harbor-Hickam, Hawaii, April 4, 2013. In 1973, the last prisoner of war from Vietnam landed on what was then Hickam Air Force Base. Retired Marine Corps Chief Warrant Officer 4 William Thomas, left, and retired Navy Capt. Jerry Coffee, second from right, former prisoners of war, show respect during the singing of the national anthem at the commemorative ceremony marking the 40th anniversary of Operation Homecoming on Joint Base Pearl Harbor-Hickam, Hawaii, April 4, 2013. In 1973, the last prisoner of war from Vietnam landed on what was then Hickam Air Force Base. SHARE: Download: Full Size (2.6 MB) Tags: Photo Essays Credit: VIRIN: 296234-Q-UCN91-687.jpg Photo Gallery