The latest rotation of US Marines has touched down in Darwin as they prepare to join Australian soldiers in training in “humanitarian assistance, security operations, and high-end live fire exercises”.

The 2500 member strong Marine Rotational Force-Darwin will spend the next seven months working closely with their Australian counterparts as well as other partner nations from around the region.

It comes on the back of last week’s announcement of the AUKUS nuclear submarine deal, and Deputy Prime Minister Richard Marles said the US continued to be Australia’s “most vital security partner”.

“Over the next six months, the Australian Defence Force and US Marine Corps will conduct a comprehensive range of training activities including humanitarian assistance, security operations, and high-end live fire exercises."