Extraordinary Valor is the true story of American Special Forces officer John Duffy, and South Vietnamese paratrooper, L� Văn Mễ, as they fight to defend Charlie Hill, a key to holding Vietnam's Central Highlands during North Vietnam's 1972 Easter Offensive.

John Joseph Duffy was born in New York City; Le Van Mễ in a small village outside the old imperial capital of Hue in South Vietnam. Living on opposite sides of the globe, they come together in the heat of war in Southeast Asia when Major Duffy is assigned as the American advisor to the elite South Vietnamese 11th Airborne Battalion where Mễ is second in command.

The battalion receives the order to "Fight to the death" on Charlie Hill. After two weeks of intense combat, hundreds lay dead and those still standing are out of food, water, and medical supplies. Their ammunition is nearly gone. Duffy and Mễ draw on their bond of friendship and trust to make a selfless two-man last stand against the final North Vietnamese human wave assault. Both are badly wounded, Duffy multiple times. Their heroic action allows 36 members of the 471-man battalion to escape and be rescued. The rest are killed, captured, or missing in action. This is their story.

(From Goodreads)