 Both F-111 squadrons were deployed to RAAF Base Tindal, Northern Territory, to support the international forces in case of action by the Indonesian military, and remained there until December; six of No.1 Squadron's aircraft and approximately 100 personnel were involved.From 20 September, when INTERFET forces began to arrive in East Timor, the F-111s were maintained at a high level of readiness to conduct reconnaissance flights or air strikes if the situation deteriorated.