Sam Emery: Australian correspondent on Prime Minister Anthony Albanese's trip to Papua New Guinea - Heather du Plessis-Allan Drive

Australia and Papua New Guinea will agree to defend each other in the event of a military attack as part of a new defence agreement set to be signed.

Prime Minister Anthony Albanese is currently in Papua New Guinea to commemorate the country's independence anniversary.

Australian correspondent Sam Emery says the defence agreement is designed to protect both nations from security threats, which remain a consistent concern.

LISTEN ABOVE

See omnystudio.com/listener for privacy information.