The US Navy has successfully tested two Trident II D5LE submarine-launched ballistic missiles, in a pre-scheduled test that follows a controversial AUKUS deal to equip Australia with its own fleet of nuclear-powered subs.

The launch was conducted off the coast of Cape Canaveral, Florida on September 17 from USS Wyoming, an Ohio-class nuclear-powered ballistic missile submarine which has been in commission since 1996, and recently underwent an technological overhaul and refueling. The D5LE is the latest ‘life-extended’ version of the Trident II missile expected to remain in service until 2042.