J. “LUMPY” LUMBACAJ. “Lumpy” Lumbaca, US Army Special Forces Lieutenant Colonel (Retired), joined the Daniel K. Inouye Asia-Pacific Center for Security Studies in March 2019. His academic focus is on counter-terrorism, illicit activities, insurgency, and radicalization

Prior to his arrival at the Center, Lumpy served for over twenty years on Active Duty in various positions throughout the US Special Operations Forces (SOF) community with primary emphasis on the Indo-Pacific region. He commanded Green Berets at the A-Team and B-Team levels, and held various other positions within the US Army’s 1st Special Forces Group (Airborne) in Okinawa, Japan and Joint Base Lewis-McChord, Washington. At Special Operations Command Pacific (SOCPAC) in Hawaii, he served in the SOJ5 (Policy & Plans) and SOJ3 (Operations) directorates. In combat, he led joint/combined Special Forces operations in Iraq and the southern Philippines. Lumpy then went on to serve as the Ground Operations Officer, and finally as the Director of Operations at the Joint United States Military Advisory Group – Thailand (JUSMAGTHAI), US Embassy, Bangkok, where he eventually retired from Active Duty. Following retirement from the military, he supported both the Department of State and the Department of Defense in the Indo-Pacific region until coming to DKI APCSS. Throughout his career, Lumpy lived and worked alongside interagency partners, diplomats, foreign law enforcement officials, paramilitary forces, and special operators throughout North, South, and Southeast Asia conducting sensitive activities from the tactical to the theater-strategic and diplomatic levels aimed at countering terrorism, illicit activities, WMD proliferation, and transnational crime.

Before becoming a Special Forces Officer, Lumpy was commissioned in the Infantry at Norwich University in 1995. It was there that he graduated summa cum laude and Distinguished Military Graduate (DMG) with a Bachelor of Arts in International Studies. In 2005 he earned his Master of Science in Defense Analysis (Irregular Warfare) (Dean’s List) from the USSOCOM Special Operations / Low-Intensity Conflict (SO/LIC) program at the Naval Postgraduate School. He is currently a doctoral student at Liberty University.

Lumpy is a graduate of DKI APCSS ASC 18-1, US Army Command & General Staff College; Joint Forces Staff College; Special Forces Qualification Course (Distinguished Honor Graduate), Airborne, Ranger, Jumpmaster, Survival Evasion Resistance Escape (S.E.R.E., Level C – High Risk), Infantry Officer Basic Course, Infantry Maneuver Captain’s Career Course, Combined Arms and Services Staff School (CAS3), DoD foreign language training and immersion (several locations), USAID/OFDA Joint Humanitarian Operations Course (JHOC), DoD Humanitarian Assistance Response Training (HART) course, and the Indian Army’s Junior Command course, among others. He is a Joint Qualified Officer (3A and 3L), fluent in Thai (3/3), and has been awarded the Royal Thai Army Master Parachutist Badge (11th award), Royal Thai Army Balloon Parachutist Badge, Royal Thai Air Force Parachutist Badge, and Republic of Korea Parachutist Badge.

His publications include: “A Review of the US Military’s Response in Support of the 2018 Thailand Cave Rescue: A U.S. Indo-Pacific Command Perspective,” 2019, CFE-DM; “Relationship Building: The Key Objective of SOF Phase Zero Engagement,” 2014, Special Warfare, Vol 27 Issue 1; “The US-Thailand ARSOF Relationship,” 2012, Special Warfare, Vol 25 Issue 1; “Islamic Insurgency and Transnational Terrorism in Thailand: Analysis and Recommended Solution Strategy,” 2005, Naval Postgraduate School Press.

Lumpy’s Publications:


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