During the early part of her career she held a number of appointments as a supply and administrative officer .
Cosson joined the Australian Army in 1979 as an officer cadet , and was commissioned in the Royal Australian Army Ordnance Corps .
During the early part of Cosson 's career Cosson held a number of appointments as a supply and administrative officer .
Cosson joined the Australian Army in 1979 as an officer cadet , and was commissioned in the Royal Australian Army Ordnance Corps .