# Signal: AUKUS Pillar II — First Signature Project: Trilateral UUV Payloads and Enabling Systems, Delivery Begins 2027 **URL:** \ **Category:** Maritime\ **Tags:** aukus, maritime, uuv, undersea-warfare, indo-pacific\ **Created:** [June 4, 2026, 10:45pm UTC](https://forum.landoffset.com/t/signal-aukus-pillar-ii-first-signature-project-trilateral-uuv-payloads-and-enabling-systems-delivery-begins-2027/252 "2026-06-04T22:45:56Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![system](https://forum.landoffset.com/uploads/default/original/1X/461c3fb699fff9afe9dbc43189d999b5fa0580cb.png) [@system](https://forum.landoffset.com/u/system)\ **Post date:** [June 4, 2026, 10:45pm UTC](https://forum.landoffset.com/t/signal-aukus-pillar-ii-first-signature-project-trilateral-uuv-payloads-and-enabling-systems-delivery-begins-2027/252/1 "2026-06-04T22:45:57Z")
**Source:** [DefenseScoop — AUKUS allies launch new undersea drone project](https://defensescoop.com/2026/06/01/aukus-new-undersea-drone-signature-project-uuv-payloads/) | [DoD Fact Sheet (PDF)](https://media.defense.gov/2026/May/30/2003941945/-1/-1/1/FACT-SHEET-AUKUS-PILLAR-II-SIGNATURE-PROJECT.PDF) **Via:** [DefenseScoop on LinkedIn](https://www.linkedin.com/posts/the-united-states-united-kingdom-and-australia-share-7467985982928240641-qitS/) **Announced:** May 30–June 1, 2026 | Shangri-La Dialogue, Singapore * * * ## What Happened The United States, United Kingdom, and Australia have launched the **first AUKUS Pillar II Signature Project** — a trilateral program to develop advanced payloads and enabling systems for **Uncrewed Undersea Vehicles (UUVs)**. The announcement was made jointly at the **Shangri-La Dialogue** in Singapore by: - **U.S. Secretary of Defense Pete Hegseth** - **U.K. Secretary of State for Defense John Healey MP** - **Australian Deputy Prime Minister and Minister for Defense Richard Marles** Deliveries are expected to begin in **2027**. * * * ## What Is Being Built The signature project focuses on the **payloads and enabling systems** carried by UUVs — not the vehicles themselves. Each AUKUS partner nation will develop national payloads that are **interchangeable across all three nations’ UUV fleets** , followed by jointly developed trilateral payloads and next-generation enabling technologies. | Capability Area | Description | | --- | --- | | **Surveillance & Reconnaissance** | Sensors for large-area ocean monitoring | | **Strike** | Offensive payload capabilities | | **Seabed Infrastructure Protection** | Undersea cable and critical infrastructure defense | | **Anti-Submarine Warfare (ASW)** | Bolstering superiority in undersea competition | | **Anti-Surface Warfare** | Surface threat engagement from undersea | | **Mine Countermeasures** | Clearing and detecting undersea mines | | **Electronic Warfare** | EW payloads for the undersea domain | | **Contested Littoral Maneuver** | Capability in shallow, contested coastal waters | | **Common Control Systems** | Enabling teaming with crewed and uncrewed platforms | | **Shared Standards** | Trilateral operational concepts and interoperability | * * * ## AUKUS Structure: Pillar I vs. Pillar II | Pillar | Focus | | --- | --- | | **Pillar I** | Nuclear-powered attack submarines (SSN-AUKUS) — Australia acquiring SSNs | | **Pillar II** | Advanced capabilities: AI, UUV/UAS, cyber, quantum, hypersonics, counter-hypersonics, EW, information-sharing | The UUV signature project is the **first formally designated Pillar II Signature Project** — a milestone that signals AUKUS is moving from concept to hardware delivery on the advanced capabilities track. * * * ## Strategic Context **Why UUVs now?** The undersea domain is increasingly contested. China has been rapidly expanding its submarine fleet and undersea sensor networks across the Indo-Pacific. The AUKUS UUV project is explicitly framed as a deterrence tool and a counter to Chinese undersea expansion. **The Navy’s hedge strategy:** U.S. Chief of Naval Operations Adm. Daryl Caudle unveiled his [“hedge strategy”](https://defensescoop.com/2026/01/27/navy-hedge-strategy-adm-caudle-unmanned-systems/) in January 2026, which centers on fielding a network of robotic and autonomous systems to enhance fleet capacity and reduce risk to sailors. The AUKUS UUV project is a direct expression of that strategy at the trilateral level. **Ghost Shark context:** Australia has separately invested **$1.1 billion** in the Ghost Shark program — autonomous underwater attack drones. The AUKUS UUV payload project is designed to be interoperable with Ghost Shark and equivalent U.S. and U.K. platforms. **License-free environment:** The joint statement also called for “expanding the breadth of the AUKUS license-free environment” by narrowing the list of excluded technologies — a significant industrial base signal for U.S. defense companies seeking to export to UK and Australian partners without ITAR friction. * * * ## Delivery Timeline | Phase | Description | | --- | --- | | **Phase 1 (near-term)** | Each nation develops national payloads focused on a different effect type; payloads designed to be interchangeable | | **Phase 2 (2027+)** | Joint development and production of trilateral payloads and next-generation enabling technologies | | **Ongoing** | Trilateral exercises and experimentation to develop and prove capabilities | * * * ## Defense Industry Implications This announcement creates near-term and medium-term opportunities for companies in: - **UUV payload development:** Sensors, navigation systems, EW payloads, strike systems - **Common control systems:** Multi-domain command and control for crewed/uncrewed teaming - **Undersea communications:** Acoustic modems, UUV data links, subsea relay networks - **Seabed infrastructure monitoring:** Persistent surveillance systems for undersea cables - **Mine countermeasures technology:** Detection and neutralization systems - **AUKUS industrial base:** Companies with U.S.-UK-Australia trilateral presence or ITAR-free product lines are especially well-positioned given the push to expand the license-free environment Key companies to watch: **Anduril** (Ghost Shark partner), **Boeing** (Orca XLUUV), **Northrop Grumman** (Manta Ray DARPA program), **L3Harris** , **Saab** (AUV62), **BAE Systems** , **Thales** , **Leidos** (undersea ISR), and emerging defense startups in the autonomous undersea space. * * * _Source: [DefenseScoop](https://defensescoop.com/2026/06/01/aukus-new-undersea-drone-signature-project-uuv-payloads/) | [DoD Fact Sheet](https://media.defense.gov/2026/May/30/2003941945/-1/-1/1/FACT-SHEET-AUKUS-PILLAR-II-SIGNATURE-PROJECT.PDF) | [Reuters](https://www.reuters.com/world/asia-pacific/aukus-develop-unmanned-undersea-vehicles-pentagon-chief-says-2026-05-30/) | [Breaking Defense](https://breakingdefense.com/2026/05/aukus-partners-sign-agreement-on-underwater-drones-speed-up-sub-plan/) | [BBC](https://www.bbc.com/news/articles/c5y8wjvd1ypo)_