John Steinbeck answers questions in South Vietnam, 1966

An Khe, South Vietnam, December 1966: Author John Steinbeck, 1962 Nobel Prize in Literature recipient, sits on a little green trunk as he answers questions from the men of the 1st Air Cavalry Division at An Khe, South Vietnam.

Sunrise silhouettes guard tower at Guantanamo Bay, 2016

Guantanamo Bay, Cuba on April 19, 2016: The rising sun silhouettes an out-of-use guard tower, fence and concertina wire at Camp Delta at Guantanamo Bay detention camp.

Translator and boy ride bike in Afghanistan, 2011

Marjah, Afghanistan, Jan. 23, 2011: An Afghan translator working for the Marines takes a local boy for a bike ride on the boy’s bike on Marjah’s main drag. The road had just been paved, a first in the town.

1st Cavalry Division football team, 1958

Craig Field, South Korea, Sept. 13, 1958: Ronald Vierra (14) of the 1st Cavalry Division football team scores a touchdown against Osan AB. The 1st Cavalry was activated as a Regular Army division at Fort Bliss, Texas, Sept. 13, 1921.

Mahalia Jackson at Tokyo Hotel, 1971

Tokyo, April, 1971: Mahalia Jackson, considered by many to be the best American gospel singer ever, talks to a reporter at her hotel a few hours after she performed for Empress Nagako and other members of the Japanese imperial family.

9/11 remembrance at the Pentagon, 2016

The Pentagon, Arlington, Va., Sept. 11, 2016: President Barack Obama speaks on the 15th anniversary of the 9/11 terror attacks at the Pentagon beneath a large American flag marking the spot an airliner crashed into the building on Sept. 11, 2001.

Dad and restless children in Berlin, 1961

Berlin, Germany, 1961: This Berlin dad has his hands full, between answering the questions of Communist border guards who are checking his papers and keeping an eye on two restless children.

President Bush and troops at Osan Air Base, 2002

Osan Air Base, South Korea, Feb. 21, 2002: President George W. Bush was full of praise as he told some 7,000 gathered troops and family members “you’re the best in the world.”

Chinook helicopter at Finthen Army Air Field, 1981

Mannheim, Germany, August, 1981: A crew at Coleman Barracks prepares an Army CH-47 Chinook helicopter belonging to the 205th Aviation Co. at Finthen Army Air Field for lifting by another Chinook, this one from the 295th Aviation Co.

Defense secretary in Afghanistan, 2016

Bagram Air Field, Afghanistan, July 12, 2016: Defense Secretary Ash Carter is greeted by U.S. Air Force officers at Bagram Air Field.