Photo 1 of 5: Five needles sit in a patient’s ear after being inserted by U.S. Army Maj. Ronovan Ottenbacher, deputy joint force surgeon, Combined Joint Task Force – Horn of Africa (CJTF-HOA), during a Battlefield Acupuncture training session at Camp Lemonnier Djibouti, Dec. 14, 2020. The single-use needles are placed in zones on a patient's ear in a simple, repeatable pattern using a plastic applicator. A medical technician can learn the procedure in a single day's training session. (U.S. Air Force photo by Tech. Sgt. Dana J. Cable)

Photo 2 of 5: U.S. Army Maj. Ronovan Ottenbacher, deputy joint force surgeon, Combined Joint Task Force – Horn of Africa (CJTF-HOA), teaches a Battlefield Acupuncture class to Task Force Bayonet Soldiers at Camp Lemonnier Djibouti, Dec. 14, 2020. Battlefield Acupuncture was developed in the early 2000s as a method to give rapid pain relief to troops in combat environments. (U.S. Air Force photo by Tech. Sgt. Dana J. Cable)

Photo 3 of 5: U.S. Army Maj. Ronovan Ottenbacher, deputy joint force surgeon, Combined Joint Task Force – Horn of Africa (CJTF-HOA), teaches a Battlefield Acupuncture class to Task Force Bayonet Soldiers at Camp Lemonnier Djibouti, Dec. 14, 2020. The single-use needles are placed in zones on a patient's ear in a simple, repeatable pattern using a plastic applicator. A medical technician can learn the procedure in a single day's training session. (U.S. Air Force photo by Tech. Sgt. Dana J. Cable)

Photo 4 of 5: Students practice the application of Battlefield Acupuncture on each other at Camp Lemonnier Djibouti, Dec. 14, 2020. The single-use needles are placed in zones on a patient's ear in a simple, repeatable pattern using a plastic applicator. A medical technician can learn the procedure in a single day's training session. (U.S. Air Force photo by Tech. Sgt. Dana J. Cable)

Photo 5 of 5: U.S. Army Maj. Ronovan Ottenbacher, deputy joint force surgeon, Combined Joint Task Force – Horn of Africa (CJTF-HOA), teaches a Battlefield Acupuncture class to Task Force Bayonet Soldiers at Camp Lemonnier Djibouti, Dec. 14, 2020. The single-use needles are placed in zones on a patient's ear in a simple, repeatable pattern using a plastic applicator. Battlefield Acupuncture was developed in the early 2000s as a method to give rapid pain relief to troops in combat environments. (U.S. Air Force photo by Tech. Sgt. Dana J. Cable)