US not seeking permanent base in PNG: defence secretary

"This is a fundamental, foundational framework to deepen that defence relationship."

A defence agreement signed in May will allow US forces to refurbish and develop infrastructure for military and civilian use at PNG seaports and airports.

Austin's visit comes after US President Joe Biden was forced to cancel a planned trip to the Pacific country in May.

Biden had invited PNG Prime Minister James Marape and other Pacific leaders to Washington later this year for the second US summit with the Pacific Islands Forum.