Among my favorites....
"Terror in the Starboard Seat"....WWII Mozzie crew account written by the Canadian Navigator....excellent book...full of laughs as well as a great account of operations.
Robert's Ridge by Malcolm McPherson....excellent recounting of a very bad day in Afghanistan. Should be required reading for all military folks.
Hamburger Hill...the fight for Nui Ap Ba by US Para's in Vietnam
Last Stand of Fox Company...Tells the story of a USMC unit holding off vastly superior Chinese forces during the Chosin Resevoir campaign in Korea.
Five Years to Freedom....By Nick Rowe, an American SF Officer captured during the early days of the Vietnam War and who escaped five years later as he was being taken to a place where he was to be executed. He was murdered by the New People's Army (NPA) in the Philippines years later.
When Hell Was In Session.....Life as a POW held in North Vietnam