OKINAWA, Japan (Jan. 6, 2021) U.S. Marine Corps Lance Cpl. Ryan Wood, left, and Lance Cpl. Samuel Velasco, water purification specialists with Marine Wing Support Squadron (MWSS) 172, 1st Marine Aircraft Wing, set up a light-weight water purification system during a water purification training event at U.S. Army Garrison Torii Station, Okinawa, Japan, Jan. 6, 2021. The water purification training event was conducted to demonstrate the capabilities and limitations of the water purification system. (U.S. Marine Corps photo by Sgt. Branden J. Bourque)