U.S. Marine Cpl. Johnathan Riethmann, a mortarman with Company A, Battalion Landing Team 1st Bn., 4th Marines, 11th Marine Expeditionary Unit, walks to a staging area at Senoor Beach, Oman, in preparation for Exercise Sea Soldier, Feb. 15. Sea Soldier 2017 is an annual, bilateral exercise conducted with the Royal Army of Oman designed to demonstrate the cooperative skill and will of U.S. and partner nations to work together in maintaining regional stability and security. USS Somerset, with the embarked 11th Marine Expeditionary Unit, is deployed in the U.S. 5th Fleet area of operations in support of maritime security operations designed to reassure allies and partners, preserve the freedom of navigation and the free flow of commerce and enhance regional stability. - U.S. Marine Cpl. Johnathan Riethmann, a mortarman with Company A, Battalion Landing Team 1st Bn., 4th Marines, 11th Marine Expeditionary Unit, walks to a staging area at Senoor Beach, Oman, in preparation for Exercise Sea Soldier, Feb. 15. Sea Soldier 2017 is an annual, bilateral exercise conducted with the Royal Army of Oman designed to demonstrate the cooperative skill and will of U.S. and partner nations to work together in maintaining regional stability and security. USS Somerset, with the embarked 11th Marine Expeditionary Unit, is deployed in the U.S. 5th Fleet area of operations in support of maritime security operations designed to reassure allies and partners, preserve the freedom of navigation and the free flow of commerce and enhance regional stability.