A diplomatic row has started after France recalled its ambassadors to Australia and the USA. It is because Australia cancelled a $37 billion order to buy diesel-powered submarines from France. Australia will buy nuclear-powered submarines instead. France called Australia's cancellation a "stab in the back" and a "betrayal". France also recalled its top diplomat to the USA. The US and Australia will cooperate on nuclear-powered submarines.

AUKUS, a new alliance between Australia, the UK and the USA, is the cause of the split. It means Australia will get technology to operate nuclear-powered subs. France only knew of the alliance hours before it was announced to the world. France said its "exceptional decision" was because of the "exceptional gravity" of the situation. China accused the three AUKUS powers of displaying a "Cold War mentality".