Jan I had a great uncle who enlisted in the field. He was originally part of the militia/VDC and decided to sign up to go overseas - this Moree boy enlisted at Katherine in the NT as this was where he was stationed at the time but his record states in the field as the location. The VDC were not sent to the NT so I would think that your great uncle enlisted in the Citizen Military Forces (militia). The militia was a part time force called up for continuous full time duty from early 1942 although some units had been on full time duty from at least 1941. After 1942 the militia were encouraged to transfer to the AIF. Many militia did so and if 75% of their unit were AIF members then the unit was deemed to be an AIF unit. Anthony Staunton