190211-M-SQ016-017 EAST CHINA SEA (Feb. 11, 2019) Hospital Corpsman 1st Class Trevor Guevara, a surface independent duty corpsman assigned to Combat Logistics Battalion (CLB) 31, demonstrates the proper administration of an IV needle on Lt. Trenton Baker, the battalion surgeon for CLB-31, to Marines from Alpha Company, Battalion Landing Team, 1st Battalion, 4th Marines, the “China Marines,” and CLB-31 during a combat life savers course aboard the amphibious dock landing ship USS Ashland (LSD 48) in the East China Sea, Feb. 11, 2019. Guevara, from Lake Elsinore, California, graduated from Elsinore High School in June 2010 before enlisting in December that same year. Baker, a native of Tucson, Arizona, graduated from Northern Arizona University with a master’s degree in Physician Assistance Studies in August 2015 before commissioning in July 2018. Alpha Company Marines are the small boat raid specialists for BLT 1/4, the Ground Combat Element for the 31st Marine Expeditionary Unit. CLB-31 provides security, logistics, and transportation as the Logistics Combat Element for the 31st MEU. The 31st MEU, the Marine Corps’ only continuously forward-deployed MEU partnering with the Wasp Amphibious Ready Group, provides a flexible and lethal force ready to perform a wide range of military operations as the premier crisis response force in the Indo-Pacific region. (Official Marine Corps photo by Lance Cpl. Harrison C. Rakhshani/Released)