Australia is set to "totally integrate" its military with Papua New Guinea's forces, PNG's defence minister has said, as the two countries prepare to sign a landmark treaty.
Australia and Papua New Guinea will be legally obliged to defend each other from a military attack on either territory under a landmark defence treaty, the ABC can reveal.
A landmark defence treaty between Australia and Papua New Guinea has been approved by PNG's cabinet, marking Australia first new alliance in more than 70 years.