Globally admired for depicting the actual face of Vietnam War, Philip Jones-Griffiths is also known for being an unparalleled journalist and a great humanitarian. He started his career in 1961, as a freelance photographer for the “The Observer” and in 1966, he was sent to Vietnam by “Magnum” agency to cover the war. (Source: Top 10 War Photographers, http://topyaps.com/top-10-war-photographers/)

Dickey Chapelle was an eminent war photographer of National Geographic magazine. Fond of travelling with troops, she was once imprisoned for more than seven weeks during the Hungarian Revolution of 1956. She was killed in Vietnam on November 4, 1965, when an explosive detonated and injured her fatally. She became the first American female reporter to be killed on the battlefield. (source: Wikipedia)

In a 45-year career, much of it spent in the front ranks of news photographers, he worked for The Associated Press, Time and Parade, covering 13 wars and amassing about 500 photojournalism awards. But it was a 1968 photograph from Vietnam, taken for The A.P., that cemented his reputation in the public eye and among his peers. That black-and-white image captured the exact moment that Brig. Gen. Nguyen Ngoc Loan, then serving as the national police chief of South Vietnam, fired a bullet at the head of a Vietcong prisoner standing an arm's length away on a Saigon street.