A pair of Force Recon Marines, with the 1st Force Recon Company, wearing MK25 closed-circuit rebreathers, exit the water during a training course.
The MK25 is the US military version of the LAR-V Draeger system.
Force Reconnaissance Marines are experts at methods of covert maritime infiltration, moving both above and under the water.
These include the use of Kayaks and Zodiac inflatables and diver propulstion vehicles.