The Vietnam War saw an increase in overall participation by EOD units. Units from EOD Group Pacific, Pearl Harbor, Hawaii deployed throughout the region. EODGRUPAC was composed of Mobile Unit, Shipboard Unit and Training and Evaluation Unit personnel. Deployed teams onboard ships at sea were composed of one officer and two enlisted men. Teams in-country were larger and were based from the Mekong Delta (RIVFLOT 1) to DaNang. With an overall emphasis in sea and riverine mine clearance operations, these teams ensured the continued safety for shipping and maritime operations.