130508-N-SD120-044 OKINAWA, Japan (May 8, 2013) Builder 3rd Class Ethan Knapp demonstrates the way to scrub a vehicle during decontamination, in the event of a chemical, biological or radiological attack. Seabees assigned to Naval Mobile Construction Battalion (NMCB) 5 conducted block training evolutions to increase the combat proficiency of the Seabees assigned to the command and to test the equipment used during field operations. NMCB 5 is currently supporting Navy and joint forces throughout the U.S. Pacific Command (PACOM). (U.S. Navy photo by Mass Communication Specialist 1st Class John P. Curtis/Released)