190501-N-JA639-1003 SAN CLEMENTE ISLAND, California (June 1, 2019) Seabees assigned to Naval Mobile Construction Battalion (NMCB) 4 ensure the ground where the batch plant is being set on is safe, firm and will not cause problems in the future. NMCB 4 is forward-deployed throughout the Indo-Pacific region ready to support major combat operations, humanitarian assistance and disaster relief and to provide general engineering and civil support to U.S. and joint forces. (U.S. Navy photo by Equipment Operator Constructionman Itzel Contreras/Released)