In the spring of 1965, within weeks of 3,500 American Marines arriving in Vietnam, a 39-year-old Briton named Larry Burrows began work on a feature for LIFE magazine, chronicling the day-to-day experience of U.S. troops on the ground – and in the air – in the midst of the rapidly widening war. The photographs in this gallery focus on a calamitous March 31, 1965, helicopter mission; Burrows’ “report from Da Nang”, featuring his pictures and his personal account of the harrowing operation, was published two weeks later as a now-famous cover story in the April 16, 1965, issue of LIFE.

Photo: Man your battle stations: The crew chief of helicopter Yankee Papa 13, lance corporal James C. Farley, mans an M-60 machine gun during a mission near Da Nang, Vietnam on March 31, 1965. (Photo by Larry Burrows/Time & Life Pictures)

Julian Rodriguez, of Everson, Wash., holds his two-gram packet of recreational marijuana outside Top Shelf Cannabis, Tuesday, July 8, 2014, in Bellingham, Wash., on the first day of legal sales in the state. (Photo by Ted S. Warren/AP Photo)

British model Jean Shrimpton at London Airport (now Heathrow), 5th June 1967. (Photo by Dove/Express/Getty Images)

People shout slogans next to Turkish police officers during the LGBTQ Pride March in Istanbul, Turkey, Sunday, June 26, 2022. (Photo by Emrah Gurel/AP Photo)

Sunrise at Rockford Common in the New Forest, UK where the heather is in bloom on July 28, 2024. (Photo by Steve Hogan/Picture Exclusive)

South African artist Tyla performs onstage during the MTV EMAs 2024 held at Co-op Live on November 10, 2024 in Manchester, England. (Photo by Jeff Kravitz/FilmMagic)

Celebrity Hair Stylist, Chris Appleton was walking along Sunset blvd on their way to film Selling Sunset with Chrishell Stause when Chris wasn't paying attention to the Frappacino's that he was carrying and dropped them in the middle of Sunset Blvd in West Hollywood, CA. on December 11, 2024. The looks on their faces was prices. The drinks can be seen in mid air before both hitting the ground and exploding. Clearly embarrassed, all they could do was laugh. (Photo by TheRealSPW/Backgrid USA)

The 26-foot-tall “Forever Marilyn” statue, was hoisted by crane early this morning in downtown Palm Springs, California on February 25, 2025. This larger-than-life tribute to Monroe's iconic pose from “The Seven Year Itch” is being moved to resolve ongoing legal disputes over its placement. Installed in 2021 near the Palm Springs Art Museum, the statue faced criticism and legal challenges regarding public access and aesthetic concerns. (Photo by Ian L. Sitren/ZUMA Press Wire/Rex Features/Shutterstock)