Seabees from Naval Mobile Construction Battalion 3 drain the standing water here in Camp Krutke the Seabee Camp within Camp Leatherneck. Four days of rain in southern Afghanistan left lake-sized puddles of water and mud all over Camp Leatherneck. NMCB 3 is an expeditionary element of U.S. naval forces providing construction, engineering and security services in support of national strategy, naval power projection, humanitarian assistance and contingency operations.