At 02:40 UTC on Sunday, the night sky over the Reykjanes peninsula lit up with the launch plumes of Aster 30 interceptors as the French SAMP/T (MAMBA) battery deployed at Keflavik attempted to engage an incoming saturation strike. Operating under total emissions control sixty miles southwest of Iceland, the aircraft carrier USS *Harry S. Truman* (CVN-75) and accompanying escorts had unleashed a synchronized suppression package: EA-18G Growlers from Electronic Attack Squadron 130 (VAQ-130) blinded the sector's radar environment while four F/A-18F Super Hornets and standoff B-52Hs released sixteen AGM-88G AARGM-ER anti-radiation missiles and AGM-158B JASSMs.
According to French defense logs, the MAMBA battery’s Arabel 3D phased-array radar engaged the first wave, successfully destroying four incoming missiles. But within ninety seconds, the second salvo overwhelmed the battery's tracking channels. Two AGM-88G warheads struck the primary radar trailer and power generation complex, detonating in a fireball that killed nine French air defense personnel and wounded twelve others, instantly blinding Allied tactical air control over the peninsula.
Thirty-five minutes later, at 03:15 UTC, four Royal Air Force Typhoon FGR4s of No. 1 (Fighter) Squadron scrambled from Keflavik's runway 19 into the low cloud ceiling to establish a defensive combat air patrol. They never reached their cruising altitudes. Staged out of Greenland's Kangerlussuaq airfield and refueled over the Denmark Strait by KC-46 Pegasus tankers, two stealth F-22A Raptors of the 1st Fighter Wing engaged the Typhoons beyond visual range with AIM-120D AMRAAMs. Two British jets were destroyed in mid-air—both pilots successfully ejecting over Faxaflói bay—while a third was clipped by shrapnel and forced into an emergency wheels-up landing beside the taxiway. Standoff precision glide munitions then cratered both ends of Keflavik’s main 10,000-foot runway, trapping the remaining European aircraft on the apron.
At 05:45 UTC, the main assault wave hit. Twenty-four MV-22B Ospreys and CH-53K King Stallions carrying the 2nd Battalion, 6th Marines crossed the southern coast under heavy naval gunfire support from the cruiser USS *Gettysburg* (CG-64). Landing directly onto the taxiways and perimeter roads of Keflavik, Marine rifle companies immediately met intense small-arms, machine-gun, and Javelin fire from fortified positions held by approximately 180 commandos of Britain’s 45 Commando, Royal Marines, and surviving French *fusiliers marins* holed up in hardened aircraft shelters and the airport terminal.
The ground engagement raged for nearly six hours in sub-zero winds and driving sleet. Facing concentrated 120mm mortar barrages, close-air support from AH-1Z Vipers, and with amphibious landing craft from the USS *New York* (LPD-21) putting Marine light armored vehicles ashore at Grindavík to seal off the peninsula, the Allied garrison was systematically surrounded. At 11:20 UTC, with their ammunition exhausted and casualties mounting, the British detachment commander agreed to an unconditional local capitulation under the Geneva Conventions. A total of 154 British and French personnel were taken into military custody and transferred under armed guard to the amphibious transport dock USS *San Antonio*.
By 15:30 UTC, Marine armored columns had moved northeast along Route 41, entering Reykjavik without resistance. U.S. forces secured the port facilities, the domestic airport, and placed armed cordons around the Althing (parliament building) and government ministries. In an emergency televised address broadcast from a secure location in the capital, Icelandic Prime Minister Kristrún Frostadóttir declared the country under "illegal, unprovoked foreign military occupation" and called on the United Nations and democratic nations worldwide to resist American aggression.
The strategic seizure of Iceland firmly establishes American operational control over the GIUK (Greenland-Iceland-UK) gap, but has triggered unprecedented shockwaves across European capitals. In London and Paris, emergency war cabinets convened through the afternoon, with British Prime Minister Keir Starmer and French President Emmanuel Macron issuing a joint statement condemning the attack as a catastrophic act of war against sovereign European territory.