US Navy deploys USS Tripoli to execute flight operations during Project Freedom against Iran.

The U.S. Navy has positioned the amphibious assault ship USS Tripoli forward of the Strait of Hormuz to conduct sustained flight operations in support of blockade enforcement against Iran, a move confirmed by U.S. Central Command on May 5, 2026, that directly shapes access to one of the world’s most critical maritime chokepoints. By shifting to an aviation-centric role with F-35B fighters and Marine forces, the deployment prioritizes localized sea control and rapid response under threat conditions rather than restoring full commercial traffic, signaling a constrained but active enforcement posture.

Configured with up to 20 F-35B jets and tiltrotor and helicopter assets, the ship functions as a mobile airpower node capable of ISR, strike, and vertical insertion missions across dispersed maritime areas. This approach enables rapid interdiction and flexible force projection while reflecting a broader trend toward distributed operations, though it remains limited by escort availability, deck cycle constraints, and reliance on external air defense.

Related topic: US launches Operation Project Freedom to break Iranian blockade in Strait of Hormuz

The USS Tripoli's air wing includes nearly 20 F-35B fighters from VMFA-121, MV-22B tiltrotors from VMM-265, and MH-60S helicopters from HSC-25, forming a composite aviation force capable of strike, ISR, and transport missions. (Picture source: US Navy)

On May 5, 2026, U.S. CENTCOM announced that the USS Tripoli (LHA-7) was positioned forward of the Strait of Hormuz to support both blockade enforcement against Iran under Operation Project Freedom. Traffic levels declined from 110 to 120 vessels per day before the crisis to fewer than 10, with some days recording zero movement, directly affecting about 2,000 vessels and 20,000 seafarers. The ship operates with about 2,200 Marines from the 31st Marine Expeditionary Unit and a composite air wing including nearly 20 F-35B fighters from VMFA-121, MV-22B aircraft from VMM-265, and MH-60S helicopters from HSC-25.

This configuration reflects a deliberate shift away from amphibious lift toward aviation-centric operations, as the ship lacks a well deck and cannot deploy landing craft. The vessel’s role is tied to enabling localized maritime access under threat conditions rather than restoring full commercial throughput. The ship departed Okinawa on March 11, 2026, transited the Strait of Malacca around March 17, and entered the Central Command area of responsibility between March 27 and 28, joining an Amphibious Ready Group that includes USS New Orleans (LPD-18) and USS San Diego (LPD-22).

The ARG carries a combined force of about 3,500 Sailors and Marines and operates in coordination with carrier strike groups built around USS Abraham Lincoln (CVN-72) and USS George H.W. Bush (CVN-77). The wider force assigned to the operation includes about 15,000 personnel, a limited number of Arleigh Burke-class destroyers, rotary-wing aircraft, drones, and about 100 fixed-wing aircraft, including F-16 fighters deployed for air defense roles. The concept of operations does not rely on convoy escort, instead using localized protection during specific transit windows supported by air cover and ISR. Initial implementation allowed only two to four ships to transit under protection on the first day, far below pre-crisis levels.

Destroyers are distributed across multiple missions, including carrier protection, blockade enforcement, and strait operations, reducing the number available for direct escort. This dispersion directly affects the level of continuous coverage that can be provided to commercial shipping. The ship’s aviation capability is structured around an 844-foot flight deck and a displacement of about 45,000 tons, optimized for short takeoff and vertical landing operations without catapults or arresting systems. F-35B aircraft conduct vertical recoveries using lift fan and vectored thrust systems, generating concentrated heat loads that require specialized deck coatings to prevent damage.

The ship can carry up to 20 F-35B aircraft in a surge configuration, though mixed air wings typically include MV-22 tiltrotors, CH-53 heavy-lift helicopters, AH-1Z attack helicopters, and UH-1Y utility helicopters. Two aircraft elevators connect the hangar deck and flight deck, enabling continuous cycling of aircraft between maintenance and operational positions. Fuel storage and aviation maintenance capacity are expanded relative to earlier amphibious ships, with about 45 percent design commonality with USS Makin Island (LHD-8). Sortie generation is constrained by vertical landing spacing, deck cycle timing, and the need to separate jet and rotorcraft operations, rather than by launch system capacity.

This results in lower peak sortie rates compared to catapult-equipped carriers but allows sustained operations over extended periods. The design emphasizes endurance and flexibility over maximum output. Flight operations are executed through a defined control structure combining ship command authority with specialized aviation control functions and Marine aviation command. The commanding officer retains overall authority, while the Air Boss located in Primary Flight Control directs launch and recovery sequences in real time. Flight Deck Control manages fueling, arming, and aircraft positioning, ensuring that turnaround times are maintained within operational limits.

Marine Air Combat Element units control mission assignment, including strike, ISR, and transport operations, creating a dual system in which naval personnel control safety and deck procedures and Marine units control mission execution. Simultaneous operations involving F-35B vertical landings, MV-22 tiltrotor activity, and helicopter flights require strict sequencing due to limited deck space and airflow interference between aircraft types. Aircraft movement on deck is coordinated through visual signals and radio communication, with strict adherence to timing protocols. The system is designed to maintain continuous operations under high-tempo conditions, but introduces constraints when multiple aircraft types operate concurrently.

On April 19, 2026, the ship supported a maritime interdiction operation involving the Iranian-flagged vessel Touska in coordination with USS Spruance (DDG-111), during which Marines were inserted directly from the ship to seize control of the vessel. This action formed part of a broader blockade enforcement effort that has resulted in at least 49 vessels being diverted since mid-April. The use of aviation assets for boarding operations eliminates reliance on surface landing craft and allows rapid insertion across dispersed maritime areas. Helicopters and tiltrotor aircraft enable direct deployment of boarding teams onto target vessels without requiring proximity to ports or support ships.

This approach reduces the need for additional escort vessels dedicated to boarding operations. It also allows operations to be conducted under conditions where surface movement is restricted by mines or hostile small craft. The ship effectively functions as a mobile staging base for interdiction operations within the blockade framework. The ship contributes to the broader air defense and ISR network despite lacking long-range missile defense systems comparable to destroyers, relying on escorts for protection against anti-ship cruise missiles and ballistic threats. Its F-35B aircraft provide ISR, targeting, and strike capabilities, while helicopters conduct surface surveillance and engage small boat threats operating near commercial vessels.

The ship operates within a network of about 100 aircraft in theater, including land-based F-16 fighters and carrier-based aviation, forming a layered detection and response system. Data links connect aircraft, ships, and command centers, enabling real-time tracking of missile launches, drone activity, and maritime movements. Helicopters have engaged small surface threats, including fast attack craft used in swarm tactics, with several vessels destroyed during early operations. The integration of aviation assets extends surveillance coverage beyond the range of surface sensors. This networked approach compensates for the ship’s limited organic defensive systems by distributing detection and response capabilities across the force.

The effectiveness of this system depends on continuous coordination between air and naval units. Operational constraints are driven by limited escort availability, with about 12 destroyers distributed across multiple mission areas, including carrier protection, blockade enforcement, and strait operations, reducing the concentration of defensive assets around individual ships. The absence of convoy systems increases the exposure of commercial vessels and requires reliance on localized air cover rather than continuous escort. Narrow sea lanes compress reaction times and limit maneuver options, increasing vulnerability to missile and drone attacks launched from multiple points along the coastline.

F-35B vertical landing cycles reduce deck throughput compared to catapult-assisted carriers, while mixed air wings introduce scheduling conflicts between jet and rotorcraft operations. The ship’s survivability against missile saturation depends on external air defense provided by escort ships and carrier aviation. These constraints limit the ability to sustain high-intensity operations over extended periods. Mission planning must prioritize specific transit windows and operational objectives rather than continuous coverage. The ship’s operational role is defined by aviation-enabled flexibility rather than sustained high-volume strike capacity, functioning as a forward ISR node, a vertical insertion base for Marine forces, and a supplementary strike asset within a distributed force structure.

It does not replace carrier strike group capabilities but supports them by extending operational reach into areas where carriers may not be continuously present. Its effectiveness depends on escort availability, airspace control provided by carrier aviation, and the ability to maintain sortie cycles under threat conditions. Current employment focuses on enabling limited transit through the Strait of Hormuz and supporting targeted interdiction operations rather than restoring full maritime traffic levels. The configuration allows rapid adaptation to changing operational requirements but remains constrained by resource distribution and environmental factors. The operational model reflects a balance between maintaining presence and managing risk under sustained threat conditions.

Written by Jérôme Brahy

Jérôme Brahy is a defense analyst and documentalist at Army Recognition. He specializes in naval modernization, aviation, drones, armored vehicles, and artillery, with a focus on strategic developments in the United States, China, Ukraine, Russia, Türkiye, and Belgium. His analyses go beyond the facts, providing context, identifying key actors, and explaining why defense news matters on a global scale.