CFA crews from Sunbury, Greenvale, Craigieburn and Bulla Fire Brigades have joined forces with the Metropolitan Fire Brigade (MFB), Aviation Rescue and Fire Fighting (ARFF), State Emergency Service (SES), Ambulance Victoria, Victoria Police, Australian Federal Police, Australian Defence Force alongside other government agencies and organisations at Melbourne’s Tullamarine Airport for one of Australia’s largest multi-jurisdictional counter-terrorism training exercises.