U.S. Marines with Weapons Company, 2nd Battalion, 23 Marine Regiment train with mortars on Camp Fuji, Japan, on Nov. 29, 2018. This is the first time in 13 years that 2/23 is active and deployed to the Indo-Pacific region. They will conduct multiple bilateral training exercises in various countries to improve their combat readiness and strengthen international relationships. (U.S. Marine Corps photo taken by Lance Cpl. Marcus Allen) - U.S. Marines with Weapons Company, 2nd Battalion, 23 Marine Regiment train with mortars on Camp Fuji, Japan, on Nov. 29, 2018. This is the first time in 13 years that 2/23 is active and deployed to the Indo-Pacific region. They will conduct multiple bilateral training exercises in various countries to improve their combat readiness and strengthen international relationships. (U.S. Marine Corps photo taken by Lance Cpl. Marcus Allen)

Lance Cpl. Dayton Hulsey a field artillery control Marine with Alpha Battery, 3rd Battalion, 12th Marine Regiment, helps conduct an ammunition transfer for the M777A2 155mm Howitzer during Artillery Relocation Training Program 18-3 October 30, 2018, on Combined Arms Training Complex, Camp Fuji, Japan. - Lance Cpl. Dayton Hulsey a field artillery control Marine with Alpha Battery, 3rd Battalion, 12th Marine Regiment, helps conduct an ammunition transfer for the M777A2 155mm Howitzer during Artillery Relocation Training Program 18-3 October 30, 2018, on Combined Arms Training Complex, Camp Fuji, Japan.

Hospital Corpsmen First Class Jose Marrero Dejesus and Ricardo Alonsolopez, with 2nd Battalion, 3rd Marines, standby before being awarded the Navy and Marine Corps Achievement Medal on Camp Hansen, Okinawa, Japan, July 13, 2018. They were on their way to get breakfast when they noticed a Marine showing signs of distress while running the physical fitness test. Marrero and AlonsoLopez conducted medical care to the distressed Marine which resulted in saving that Marine's life. (U.S. Marine Corps photo by Lance Cpl. Marcus Allen) - Hospital Corpsmen First Class Jose Marrero Dejesus and Ricardo Alonsolopez, with 2nd Battalion, 3rd Marines, standby before being awarded the Navy and Marine Corps Achievement Medal on Camp Hansen, Okinawa, Japan, July 13, 2018. They were on their way to get breakfast when they noticed a Marine showing signs of distress while running the physical fitness test. Marrero and AlonsoLopez conducted medical care to the distressed Marine which resulted in saving that Marine's life. (U.S. Marine Corps photo by Lance Cpl. Marcus Allen)

Locals and Marines stand in front of the monument on Hamahiga Island, Okinawa, Japan, June 23, 2018. The locals of Hamahiga hold an annual memorial service for all those who passed away during the battle of Okinawa, which ended in 1945. (U.S. Marine Corps photo by Lance Cpl. Nathan Maysonet) - Locals and Marines stand in front of the monument on Hamahiga Island, Okinawa, Japan, June 23, 2018. The locals of Hamahiga hold an annual memorial service for all those who passed away during the battle of Okinawa, which ended in 1945. (U.S. Marine Corps photo by Lance Cpl. Nathan Maysonet)

U.S. Navy Lt. Terrance Leighton, a diving medical officer with 3rd Reconnaissance Battalion, 3rd Marine Division, explains the basic operations of the compression chamber on Camp Schwab, Okinawa, Japan on June 13, 2018. The compression chamber is used to help treat service members with water pressure injures. Becoming a diving medical officer requires on average nine years of pipeline training before a candidate is ready to operate in the fleet. Leighton is a native of Boise, Idaho and an alumni of Michigan State University. (U.S. Marine Corps photo by Lance Cpl. Cameron Parks) - U.S. Navy Lt. Terrance Leighton, a diving medical officer with 3rd Reconnaissance Battalion, 3rd Marine Division, explains the basic operations of the compression chamber on Camp Schwab, Okinawa, Japan on June 13, 2018. The compression chamber is used to help treat service members with water pressure injures. Becoming a diving medical officer requires on average nine years of pipeline training before a candidate is ready to operate in the fleet. Leighton is a native of Boise, Idaho and an alumni of Michigan State University. (U.S. Marine Corps photo by Lance Cpl. Cameron Parks)