Lance Cpl. Scott Kesler, a rifleman with Company C, 1st Battalion, 25th Marines, 4th Marine Division, poses for a photo during exercise Riley Xanten in Ontario, Canada, Feb. 6, 2017. Kesler and his fellow Marines joined soldiers with the Royal Hamilton Light Infantry, Wentworth Regiment, Canadian Armed Forces, to train in an arctic environment and exchange knowledge on cold weather tactics, survival skills, shelter building, ice fishing, and more. (U.S. Marine Corps photo by Sgt. Sara Graham/released) - Lance Cpl. Scott Kesler, a rifleman with Company C, 1st Battalion, 25th Marines, 4th Marine Division, poses for a photo during exercise Riley Xanten in Ontario, Canada, Feb. 6, 2017. Kesler and his fellow Marines joined soldiers with the Royal Hamilton Light Infantry, Wentworth Regiment, Canadian Armed Forces, to train in an arctic environment and exchange knowledge on cold weather tactics, survival skills, shelter building, ice fishing, and more. (U.S. Marine Corps photo by Sgt. Sara Graham/released)

Staff Sgt. Ryan Leonard, training staff noncommissioned officer in charge at Headquarters Battalion, 4th Marine Division, performs jerk and clears during an April 27 Cross Fit Red Diamond session. Born as a predeployment conditioning program for the Marines of the 4th Marine Division in the summer of 2009, Cross Fit Red Diamond has evolved into a permanent physical training program that attracts a steady following of fitness aficionados from across Marine Forces Reserve Headquarters as well as a number of base security and civilian workers. ::r::::n::(Official Marine Corps photo by Cpl. Jad Sleiman)::r::::n:: - Staff Sgt. Ryan Leonard, training staff noncommissioned officer in charge at Headquarters Battalion, 4th Marine Division, performs jerk and clears during an April 27 Cross Fit Red Diamond session. Born as a predeployment conditioning program for the Marines of the 4th Marine Division in the summer of 2009, Cross Fit Red Diamond has evolved into a permanent physical training program that attracts a steady following of fitness aficionados from across Marine Forces Reserve Headquarters as well as a number of base security and civilian workers. ::r::::n::(Official Marine Corps photo by Cpl. Jad Sleiman)::r::::n::