With the threat of Iranian attacks at other ports in the region, the Pentagon looked to a base under British command on the island of Diego Garcia as its supply hub, which is south of the Maldives and roughly 2,200 miles from where two aircraft carrier strike groups have been operating in the Gulf of Oman.
A U.S. military official, who spoke on the condition of anonymity to discuss sensitive logistics, said the Navy began using Diego Garcia as the main shipment point shortly after the Navy’s base in Bahrain was heavily damaged.
Bahrain is one of the two ports where U.S. aircraft carriers in the region have typically moored so their crews can get some downtime. The other, the Emirati port of Fujairah on the Gulf of Oman, is also well within the range of Iranian missiles.
At the war’s outset, Keir Starmer, then the British prime minister, denied the Pentagon access to Diego Garcia for use in the operation against Iran. That decision drew Mr. Trump’s ire, and Mr. Starmer ultimately relented on March 1, granting the U.S. military access to the island for what he described as a “specific and limited defensive purpose.”
The use of Diego Garcia as the Navy’s new logistics hub may explain why Iran fired two medium-range ballistic missiles at the island on March 20.