GULFPORT, Miss. (May 13, 2022) Seabees assigned to Naval Mobile Construction Battalion (NMCB) 1 remove M9 chemical detection paper from a Humvee during a convoy decontamination exercise during the chemical biological and radiological (CBR) defense team trainer training course at Naval Construction Training Center Gulfport. NMCB-1 is conducting an intense homeport training plan to expand their ability to execute construction, humanitarian assistance, and theater operations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Sean P. Rinner)