Retired Captain Pao Yang was a Hmong airman trained by the U.
Air Force and CIA to fly T-28D aircraft for the U.
Secret War in Laos.
However, his plane was shot down during a mission in June 1972.
Yang survived, but enemy forces captured him and sent him to a POW camp in northeastern Laos.
He remained imprisoned for four years after the United States withdrew from Vietnam because he fought on the American side of the war.
Prisoner of Wars shows the impact the U.
S Secret War .