The Queen has presented new royal colours to the Royal Military College (RMC) at Duntroon, for the fourth time in her reign.
Her Majesty said she was pleased to present the colours to RMC in its 100th anniversary year.
"The college has held an esteemed position in the training of Australian officers for war and peace time service over the past 100 years," she told cadets, college staff, military chiefs and families at the RMC parade ground in Canberra on Saturday.
"The dedicated and outstanding service your graduates have provided to the nation is a milestone to be celebrated."
The RMC was founded in 1911 and is Australia's equivalent of Sandhurst in Britain and West Point in the US, training army officer cadets who graduate as lieutenants.