Major General Peter Warwick "Gus" Gilmore, AO, DSC (born 31 January 1962) is a retired senior officer of the Australian Army.

[7][8][9] He graduated from Duntroon with a Bachelor of Arts degree from the affiliated University of New South Wales, and was commissioned a lieutenant in the Royal Australian Infantry Corps on 14 December 1983.

[12] Gilmore's period as commanding officer of the SASR coincided with Operation Slipper, Australia's initial commitment to the War in Afghanistan.

The Australian government decided to deploy a Special Operations Task Group, which was to include 1 Squadron SASR under Major Daniel McDaniel.

There, Gilmore's men worked alongside United States Marines in Brigadier General Jim Mattis's Combined Task Force 45 to eliminate terrorist save havens by disrupting Taliban and Al Qaeda elements in the region.

[13] After more than three months of heavy activity, during which 1 Squadron SASR was involved in intelligence, surveillance and reconnaissance missions,[14] Gilmore was succeeded in command of the Australian Special Operations Task Group by Lieutenant Colonel Rowan Tink on 1 February 2002.

[15] Three squadrons of the SASR completed operational rotations in Afghanistan over the first twelve months, receiving praise from Mattis and other coalition partners for their efficiency and effectiveness.

Promoted brigadier in November 2005, Gilmore deployed to Baghdad to lead the Coalition Advisory Support Team in the Iraqi Joint Headquarters.

[9] Gilmore's "exceptional service" in these posts led to his appointment as a Member of the Order of Australia in the Queen's Birthday Honours of June 2009.