Sending a Ship to Strait of Hormuz Would Test 'Small, Stretched' Australian Navy

Why It Matters

The analysis highlights Australia’s constrained maritime capacity and the strategic trade‑off between immediate coalition support and preserving long‑term naval readiness, influencing regional security postures.

Key Takeaways

• Australian navy operates only ten warships
• Anzac frigates are aging, limited missile range
• Hobart destroyers under upgrade, cannot spare for Gulf
• New Japanese-built Mogami frigates expected 2030
• Air assets, not ships, are viable contribution

Pulse Analysis

The Royal Australian Navy (RAN) fields ten surface combatants – seven Anzac‑class frigates and three Hobart‑class destroyers – many commissioned in the 1990s. Their missile ranges and air‑defence suites lag behind regional threats, and incidents like HMAS Toowoomba’s clash with a Chinese helicopter reveal operational strain. With the United States indicating no need for Australian warships in the Strait of Hormuz, Canberra faces a dilemma: a technically possible deployment that would jeopardise ongoing capability upgrades and stretch an already thin force.

Replacement programs aim to reverse the imbalance, but deliveries extend beyond 2030. Japan’s Mitsubishi Heavy Industries will provide eleven Mogami frigates, the first expected in 2030, while South Australia builds six Hunter‑class anti‑submarine vessels, not slated until 2034. In the interim, the RAN must prioritize Indo‑Pacific security, where its limited assets are already engaged in patrols, exercises, and humanitarian missions. The prolonged gap between decommissioning older hulls and commissioning new ones leaves Australia exposed to capability shortfalls in contested maritime corridors.

Air power offers a pragmatic alternative to a naval deployment. Australia already operates an E‑8A Wedgetail for surveillance and has deployed 85 personnel to support the UAE; it could add P‑8 Poseidon maritime patrol or aerial refuelling aircraft to a coalition effort. While such contributions carry more political than kinetic weight, they preserve the RAN’s readiness for core Indo‑Pacific priorities and signal allied solidarity without exposing aging ships to the missile‑dense Strait of Hormuz. The episode underscores the strategic cost of delayed naval renewal.