The Department of Defence controls the Proof & Experimental Establishment (P&EE, Proof Range) at Port Wakefield in South Australia. The function of the P&EE is to proof and test ammunition for all of Australia's military.

The site originally comprised about 5,000ha of degraded farm land and is located in the coastal fringe on the eastern shoreline of northern Gulf St Vincent.

Since the late 1980s, there has been a commitment to the protection of native vegetation and the restoration, rehabilitation and revegetation of degraded areas.

Over the past 17 years, Defence has applied a wide array and combination of people, groups and techniques at the Proof Range. It has developed its on-ground management of areas to reflect its commitment to sustainability. Proof Range conserves major areas of remnant vegetation and is now one of the largest revegetation projects in South Australia.

This paper, and its associated poster, explains the formulae applied to successfully starting and actively continuing vegetation management. It also provides an answer to the question in the title of the paper.