|Date from||19 December 1944|
|Date to||29 December 1944|
|Unit||15th Australian Infantry Battalion|
Second World War, 1939-1945
This honour was awarded for the patrolling actions that began the advance in Bougainville’s Southern Sector, from the Jaba River, along the coast of Empress Augusta Bay, to the Tavera River. Much of the patrolling was done through swampy marsh, and has colloquially been called the “battle of the swamps”. The honour is unique to the 15th Infantry Battalion.