
His wartime experience inspired his first novel War Year. He was wounded in combat and received a Purple Heart. He was immediately drafted into the United States Army, where he served as a combat engineer in the Vietnam War. He received a Bachelor of Science degree in Physics and Astronomy from the University of Maryland in 1967. In 1965, Haldeman married Mary Gay Potter, known as Gay Haldeman. He had to repeatedly start classes as a new kid in local schools. His family traveled and he lived in Puerto Rico, New Orleans, Washington, D.C., Bethesda (Maryland) and Anchorage (Alaska) as a child. Haldeman was born in Oklahoma City, Oklahoma. Gay Haldeman at Worldcon 75 in Helsinki in 2017 From 1983 to 2014, he was a professor teaching writing at the Massachusetts Institute of Technology (MIT). Wounded in combat, he struggled to adjust to civilian life after returning home.

Many of Haldeman's works, including his debut novel War Year and his second novel The Forever War, were inspired by his experiences in the Vietnam War. In 2012 he was inducted as a member of the Science Fiction Hall of Fame. He was awarded the SFWA Grand Master for career achievements.

That novel and other works, including The Hemingway Hoax (1991) and Forever Peace (1997), have won science fiction awards, including the Hugo Award and Nebula Award. He is best known for his novel The Forever War (1974). Joe William Haldeman (born June 9, 1943) is an American science fiction author.
