A Lattice Modular Heli-Drone is displayed during a test run of the Lattice Platform Security System at the Red Beach training area, Marine Corps Base Camp Pendleton, California, Nov. 8, 2018. The Lattice Modular Heli-Drone was being tested to demonstrate its capabilities and potential for increasing security. - A Lattice Modular Heli-Drone is displayed during a test run of the Lattice Platform Security System at the Red Beach training area, Marine Corps Base Camp Pendleton, California, Nov. 8, 2018. The Lattice Modular Heli-Drone was being tested to demonstrate its capabilities and potential for increasing security.

Gunnery Sgt. Scott Michael Dahn, left, and Ching-Yi Sze, left, come together after Dahn rescued Ching-Yi while scuba diving May 20, 2018 at Maeda Point, Okinawa, Japan. Dahn brought Ching Yi, a Hong Kong native, to safety after she nearly drowned while scuba diving and supplied oxygen and care to her until paramedics came. Dahn, a native of Herron, Michigan, is the training chief for 3rd Maintenance Battalion, 3rd Marine Logistics Group, III Marine Expeditionary Force. - Gunnery Sgt. Scott Michael Dahn, left, and Ching-Yi Sze, left, come together after Dahn rescued Ching-Yi while scuba diving May 20, 2018 at Maeda Point, Okinawa, Japan. Dahn brought Ching Yi, a Hong Kong native, to safety after she nearly drowned while scuba diving and supplied oxygen and care to her until paramedics came. Dahn, a native of Herron, Michigan, is the training chief for 3rd Maintenance Battalion, 3rd Marine Logistics Group, III Marine Expeditionary Force.

Staff Sgt. Kiriden Benny, the cyber network systems chief with Special Purpose Marine Air-Ground Task Force - Southern Command, practices breathing compressed air during Underwater Egress Training at the Water Survival Training Facility on Marine Corps Base Camp Lejeune, North Carolina, March 8, 2017. The purpose of the training is to teach Marines lifesaving skills in the event of an aircraft mishap in the water. - Staff Sgt. Kiriden Benny, the cyber network systems chief with Special Purpose Marine Air-Ground Task Force - Southern Command, practices breathing compressed air during Underwater Egress Training at the Water Survival Training Facility on Marine Corps Base Camp Lejeune, North Carolina, March 8, 2017. The purpose of the training is to teach Marines lifesaving skills in the event of an aircraft mishap in the water.

Karen Delich, a health specialist from Colorado Springs addresses students attending Weapons and Tactics Instructor Course 2-17 and Marine Aviation Weapons and Tactics Squadron One staff during a tactical risk management period of instruction at Marine Corps Air Station Yuma, Ariz., March 15, 2017. WTI is a seven week event hosted by MAWTS-1. MAWTS-1 provides standardized tactical training and certification of unit instructor qualifications to support Marine Aviation Training and Readiness and assists in developing and employing Aviation Weapons and Tactics. - Karen Delich, a health specialist from Colorado Springs addresses students attending Weapons and Tactics Instructor Course 2-17 and Marine Aviation Weapons and Tactics Squadron One staff during a tactical risk management period of instruction at Marine Corps Air Station Yuma, Ariz., March 15, 2017. WTI is a seven week event hosted by MAWTS-1. MAWTS-1 provides standardized tactical training and certification of unit instructor qualifications to support Marine Aviation Training and Readiness and assists in developing and employing Aviation Weapons and Tactics.