The Latest Breaking News from Simon Stuart

Problems with the Taipan helicopters' reliability and cost mean they are not suitable for what Ukraine wanted them for, the defence department says.

The cause of the accident is still unknown and is being probed by investigators who arrived on Sunday

The new "Plan Anzac" cooperation agreement will allow both armies to share operational intelligence and technology as New Zealand's new PM prepares to meet Anthony Albanese in Australia.

The Defence Flight Safety Bureau has begun a formal investigation into why the multi-role helicopter was forced to ditch into the sea while taking part in counterterrorism exercises.

Ten ADP personnel have survived after the helicopter they were on plunged into water off the NSW south coast during a routine training exercise.

When war was on the doorstep to Australia's north 80 years ago, nearly 900 Torres Strait Islanders signed up to help protect the country despite not being able to enter pub, earn a fair wage, or be counted in the Commonwealth census.

Exclusive: Report reveals oversight panel appealed to chief of ADF and chief of army to act with ‘a sense of urgency’

Australia’s new chief of army warns the prospect of nuclear war in Europe must be taken “very seriously” with the world now entering a strategic era different to the past 80 years.

The head of the North West Defence Alliance says Australia's Chief of Army was "speaking carefully" when responding to concerns that WA's north is under-defended.