Chief of Staff

Captain Donald M. Plummer

United States European Command CJTF-HOA Chief of Staff Biography

Captain Donald M. Plummer serves as the Chief of Staff, Combined Joint Task Force—Horn of Africa.

Captain Plummer was commissioned an Ensign from the University of Pennsylvania NROTC in 1991. Upon graduation, he attended Basic Underwater Demolition/ SEAL Training (Class 184) graduating in 1992.

Captain Plummer has served at continuous levels of leadership in the Navy. His notable assignments include: SEAL Team 5; NSW Unit 1 and 8; Officer-In-Charge, Naval Special Warfare detachment Key West / Executive Officer, U.S. Army Special Operations Dive School; Commanding Officer, NR Naval Special Warfare Headquarters TWO and FOUR; Commanding Officer, NR U.S. Special Operations Command Headquarters. Most recently, he served as Commanding Officer, NR Group 11 Headquarters and Deputy Commodore, NSW Group 11.

He participated in numerous contingency and combat operations in Iraq, Afghanistan, Horn of Africa, and Kenya. His awards include the Bronze Star, Defense Meritorious Service Medal with three gold stars, Meritorious Service Medal, Joint Service Commendation Medal, Navy Commendation medal with two gold stars, Navy Achievement Medal, and Army Achievement Medal and various unit and service awards.

Captain Plummer holds a Master’s Degree from the Naval Postgraduate School and joint professional education from the Naval War College and National Defense University.


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U.S. and Coalition forces participate in St. Michael's Day jump

American, French, Djiboutian and Italian forces performed a static line jump near Camp Lemonnier, Djibouti, Sept. 29th, 2019, in celebration of St. Michael the Archangel, the patron saint of paratroopers.

CJTF-HOA service members participate in 9/11 remembrance ceremony

Members of Combined Joint Task Force-Horn of Africa (CJTF-HOA) and Camp Lemonnier, Djibouti (CLDJ) paid tribute to the first responders, and honored the memory of the 2,977 victims who lost their lives 18 years ago, during a ceremony held under the U.S. flag, flown at half staff, at CLDJ Sept. 11.

Task Force Warrior trains with 5th RIAOM Marines

U.S. Army Soldiers assigned to Combined Joint Task Force-Horn of Africa (CJTF-HOA) and French Marines assigned to the 5th Overseas Intermarines Regiment (RIAOM) participated in a combatives exchange training at Djibouti Air Base, Djibouti, Sep. 2 and Sep. 3, 2019.

CJTF-HOA deputy commanding general gauges progress in South Sudan

U.S. Air Force Brig. Gen. James R. Kriesel, deputy commanding general, Combined Joint Task Force-Horn of Africa (CJTF-HOA), visited U.S. government and South Sudanese officials in Juba, South Sudan, August 14-16 and met with leaders of the South Sudan People’s Defence Forces (SSPDF), United Nations Mission in South Sudan (UNMISS), U.S. Agency for International Development (USAID), Center for Disease Control (CDC), United Kingdom and U.S. Embassy Juba personnel, and South Sudanese government and opposition leaders t.

CJTF-HOA Command Senior Enlisted Leader visits EARF during live-fire exercise

U.S. Army Command Sgt. Maj. Shawn Carns, command senior enlisted leader (CSEL), Combined Joint Task Force-Horn of Africa (CJTF-HOA), visited U.S. Army Soldiers assigned to the East Africa Response Force (EARF), deployed in support of CJTF-HOA, as they conducted a live-fire exercise at Arta Range, Djibouti, Aug. 26.