"The successes experienced, including proving the ability of all three AUKUS navies to command-and-control vessels on the other side of the world in a tactically realistic scenario, show how close we are to realising our ambition of a genuine team of crewed and uncrewed systems, capable of operating and prevailing everywhere on the planet, from the seabed to space," Royal Navy Director Develop James Parkin said in a statement.

North Korea's leader, Kim Jong Un, ramped up the rhetoric that has increasingly soured relations between South Korea, promising it would use "all the offensive forces it has possessed, including nuclear weapons". South Korea responded that its US-backed response would be "overwhelming" and result in the "end of the North Korean regime."