Cpl. Ryan A. Siwak, a cannoneer with Golf Battery, Battalion Landing Team 2nd Battalion, 5th Marines, 31st Marine Expeditionary Unit, and native of Penn Yan, N. Y., winces as oleoresin capsicum (a more potent form of pepper spray) hits his face during the culminating event of the unit’s public disorder and non-lethal weapons employment training aboard Camp Hanson, Okinawa, Japan, Jan. 24, 2014. Experiencing OC spray ensures Marines understand the effects and, if cross-contaminated during use, they are able to fight through the pain and perform their job. (U.S. Marine Corps photo by Lance Cpl. Andrew Kuppers/Released)
