From Army.mil:

Retired U.S. Army Capt. Florent “Flo” Groberg was born in Poissy, France, May 8, 1983. Groberg became a naturalized U.S. citizen, Feb. 27, 2001, and graduated from Walter Johnson High School in Bethesda, Md., in June of the same year.

Groberg entered the Army in July 2008 and attended Officer Candidate School at Fort Benning, Ga. He received his commission as an infantry officer, Dec. 4, 2008. After completing Infantry Officer Basic Course, Mechanized Leaders Course, U.S. Army Airborne and U.S. Army Ranger Schools, he was assigned to the 4th Infantry Division at Fort Carson, Colo., as a platoon leader.