After graduating from West Point in 1967, Hartmut Lau was given a choice to serve his active duty in either the United States or Europe. He volunteered to go to Vietnam.

With the U.S. escalating its involvement in the Vietnam War, and the draft still two years away, Hartmut joined the Army’s 9th Infantry Division during one of the war’s worst years of combat. In 1968, American casualties peaked at 16,899, and 29 of Hartmut’s 589 fellow cadets from the class of ’67 were killed.

In 1991, after 24 years of service, Hartmut retired at the rank of colonel having been awarded the Silver Star Medal, the Bronze Star Medal, and the Purple Heart. Five years later, he met his wife, Barbara.

Over the course of their 20-year marriage, he has shared with her stories about his time at West Point, but Hartmut had never before spoken to Barbara about his service during the Vietnam War—until they came to StoryCorps.

Originally aired November 11, 2016, on NPR’s Morning Edition.