24th Marine Expeditionary Unit
US Marine Corps rapid-response expeditionary force; ran the June 2026 Guantanamo readiness drills.
Last refreshed: 12 June 2026
Why are US Marines fast-roping at Guantanamo as Cuba talks begin?
Timeline for 24th Marine Expeditionary Unit
Conducted FRIES fast-rope insertion drills at Naval Station Guantanamo on 4 June
Cuba Dispatch: Marines drill at Guantanamo as a back-channel opens- What is a Marine Expeditionary Unit and what does it do?
- A Marine Expeditionary Unit is a self-contained combined-arms force of roughly 2,200 Marines and sailors embarked aboard Navy ships. It can land within hours of an order and operate independently for up to 15 days.Source: US Marine Corps
- Why are US Marines training at Guantanamo Bay in June 2026?
- The 24th MEU carried out FRIES fast-rope drills at Naval Station Guantanamo on 4 June 2026. SOUTHCOM described the exercise as routine readiness training; the timing overlapped with the first US-Cuba military contact of the current crisis.Source:
- What does Littoral Combat Force-24 mean?
- Littoral Combat Force-24 is the operational designation of the 24th MEU for its current deployment, indicating its mission focus on near-shore forcible-entry operations rather than open-ocean or inland tasks.Source:
- What is FRIES and why do Marines use it?
- FRIES stands for Fast Rope Insertion and Extraction System. It lets Marines slide rapidly from a hovering helicopter onto a small landing zone, useful for ship-to-shore assaults, building entries, or any site too confined for a full landing.
Background
The 24th Marine Expeditionary Unit conducted fast-rope insertion and extraction system (FRIES) drills at Naval Station Guantanamo Bay on 4 June 2026, using UH-1Y Venom helicopters under US Southern Command. The formation is designated Littoral Combat Force-24, optimised for rapid forcible-entry rather than sustained occupation or drug-interdiction patrol, and its presence at Guantanamo coincides with the first confirmed US-Cuba military-to-military contact of the current crisis.
Marine Expeditionary Units are the US Marine Corps's forward-deployed combined-arms formations, each comprising a battalion landing team, a composite aviation squadron, and a logistics combat element. The 24th MEU is assigned to II Marine Expeditionary Force at Camp Lejeune, North Carolina, and routinely deploys to The Atlantic, Mediterranean, and Caribbean theatres aboard Navy amphibious ready groups. A MEU can be ashore within six hours of an execute order and sustains itself for up to 15 days of independent operations.
The deployment illustrates how MEUs function as both a military instrument and a diplomatic signal: their sea-basing lets a president project force or restraint without a permanent footprint. In the Caribbean context the 24th MEU's FRIES training is readable as a contingency-readiness demonstration, not an invasion posture, a distinction SOUTHCOM's public announcement was careful to maintain.