On Tuesday 25 August 2026, Her Excellency the Honourable Ms Sam Mostyn AC, as guest of Lieutenant General Susan Coyle AM CSC DSM, Chief of Army, attended, as the Reviewing Officer, the Graduation Parade of the 151st full-time Officer Training Class at the Royal Military College, Duntroon. 

In the afternoon, the Governor-General as guest of Ms Debra Cerasa, Chief Executive Officer, Amplify Alliance Australia, attended the national not-for-profit summit at Hotel Realm, Canberra.