Honored Guest Marine Corps Col. Michael L. Brooks places a pin on retired Air Force Senior Master Sgt. William Gross, the guest of honor, during the National Vietnam War Veterans Day commemoration ceremony at Marine Corps Base Quantico, Va., March 29, 2023. SHARE IMAGE: Download Image: Full Size (10.61 MB) Tags: marine corps, vietnam war Photo By: Marine Corps Lance Cpl. Joaquin Dela Torre VIRIN: 230329-M-AU112-1056C.JPG Photo Gallery