Sgt. 1st Class Brian Marx

Только что подкинули, в дополнении, про Брайана Маркса, 51-летнего рейнджера, который в 40 лет пошел служить в армию и в 41 прошел отбор в 75-й полк.

A veteran with five combat deployments to Afghanistan, Marx grew up in the Pleasant Hills area of New Manchester and attended Chester Junior High School. Frank’s Pastry Shop and Bruno’s Pizza were his world until he graduated from Oak Glen High School in 1988.

Marx worked in the corporate world until he decided to enlist in the Army in 2009, Fox said. “He could have entered as an officer, but that’s not what he chose to do,” Fox said.

Marx earned the Joint Service Commendation Medal with oak leaf cluster, the Army Commendation Medal with oak leaf cluster, and the Army Achievement Medal with two oak leaf clusters. He currently is a liaison officer with the 75th Ranger Regiment out of Fort Benning, Ga.
He and his wife, Rebecca, have three children.

https://www.weirtondailytimes.com/news/local-news/2016/05/orchards-at-foxcrest-hosts-heroes/

В общем, стальной "дед".
По другому, на фоне своих 18-20 летних подопечных он не выглядит.

Jungle Warfare Training Center, Japan

U.S. Army Green Berets from 1st Battalion, 1st Special Forces Group (Airborne), complete a land navigation exercise with Team Kadena Airmen from the 18th Wing, Aug. 20, 2019, at the Jungle Warfare Training Center, Camp Gonsalves, Japan. A Special Forces detachment trains joint-and-coalition forces to enhance a variety of specialized warfighting skills, enhancing readiness and lethality of U.S. allies and partners. When they are not deployed, training U.S. service members at home station further enhances and develops these skillsets.