NMCB-58

Naval Mobile Construction Battalion 58 (NMCB-58), known as the "Steelworkers," was a unit of the United States Navy Seabees. Commissioned during the Vietnam War era, NMCB-58 was tasked with construction and engineering duties in support of combat and humanitarian operations. The battalion deployed to Vietnam, where it built airfields, roads, bridges, and base facilities under challenging conditions. After Vietnam, NMCB-58 continued to serve in various locations around the world until it was decommissioned in the 1990s as part of post-Cold War force reductions.