Cpl. Caleb S. Walcott, a squad leader with Company G, Battalion Landing Team 2nd Battalion, 7th Marines, 31st Marine Expeditionary Unit, provides security in the back of an amphibious assault vehicle during a mock amphibious raid, Oct. 14. The raid was conducted during the 31st MEU’s certification exercise. The 31st MEU is the only continuously forward-deployed MEU and remains the nation’s force in readiness in the Asia-Pacific region. - Cpl. Caleb S. Walcott, a squad leader with Company G, Battalion Landing Team 2nd Battalion, 7th Marines, 31st Marine Expeditionary Unit, provides security in the back of an amphibious assault vehicle during a mock amphibious raid, Oct. 14. The raid was conducted during the 31st MEU’s certification exercise. The 31st MEU is the only continuously forward-deployed MEU and remains the nation’s force in readiness in the Asia-Pacific region.