HMS Anson Takes Strike Position in Arabian Sea

HMS Anson, a Royal Navy Astute-class nuclear-powered attack submarine fitted with Tomahawk Block IV cruise missiles, has positioned in the northern Arabian Sea — placing UK long-range strike capability within reach of virtually all Iranian targets. The submarine's Tomahawk Block IV missiles have a range of approximately 1,600 kilometres, sufficient to reach Tehran, Natanz, Bandar Abbas, Isfahan, and the Khuzestan oil fields from its current position. HMS Anson departed HMAS Stirling (Perth, Australia) on March 6 and has transited the Indian Ocean to take up this forward position. The deployment significantly expands allied strike depth in the region. Combined with US B-2 bombers operating from Diego Garcia, two US carrier strike groups in the Gulf and Red Sea, and CENTCOM land-based assets, HMS Anson represents a third independent long-range strike platform now in theater. Its arrival coincides directly with Trump's 48-hour ultimatum to Iran over the Strait of Hormuz — the combined allied posture leaves Iran with limited doubt about the consequence of non-compliance.

Key facts

• •HMS Anson is an Astute-class SSN — nuclear propulsion only, NOT nuclear-armed
• •Tomahawk Block IV range: ~1,600km — covers all Iranian territory from northern Arabian Sea
• •Departed Perth (HMAS Stirling) on March 6; 16 days in transit to theater
• •UK's first independently deployed SSN in strike role during an active US-led campaign
• •Spearfish torpedoes provide anti-submarine and anti-ship capability alongside land-attack role
• •Deployment is bilateral UK-US, outside NATO collective framework