William Frederick Harris received the Navy Cross for extraordinary heroism during the breakout in a battle that took place in which war ?
the Korean War
Title: William Frederick Harris
Passage: William Frederick Harris (6 March 1918 – 7 December 1950) was a United States Marine Corps Lieutenant Colonel during the Korean War.  He was the son of USMC General Field Harris, a Prisoner of War during World War II and a recipient of the Navy Cross for extraordinary heroism during the breakout in the Battle of Chosin Reservoir.  He was last seen by American forces on 7 December 1950, was listed missing in action and is presumed to have been killed in action.  Harris was featured in the and film "Unbroken".
Title: Intelligence Star
Passage: The Intelligence Star is an award given by the Central Intelligence Agency to its officers for "voluntary acts of courage performed under hazardous conditions or for outstanding achievements or services rendered with distinction under conditions of grave risk".  The award citation is from the Director of the Central Intelligence Agency and specifically cites actions of "extraordinary heroism".  It is the third-highest award given by the Central Intelligence Agency, behind the Distinguished Intelligence Cross and Distinguished Intelligence Medal, and is analogous to the Silver Star, the US military award for extraordinary heroism in combat.  Only a few dozen people have received this award (most posthumously), making it one of the rarest valor awards awarded by the US government.
Title: Battle of Chosin Reservoir
Passage: The Battle of Chosin Reservoir, also known as the Chosin Reservoir Campaign or the Changjin Lake Campaign (Korean: 장진호 전투 ; hanja: 長津湖戰鬪; rr: "Jangjin ho jeontu"; ), was a decisive battle in the Korean War.  The name "Chosin" is derived from the Japanese pronunciation ""Chōshin"", instead of Korean pronunciation
William Frederick Harris Battle of Chosin Reservoir