The Australian contribution to the war in Afghanistan has been known as Operation Slipper (2001–2014) and Operation Highroad (from 2015). Australian Defence Force (ADF) operations and the size of the forces deployed have varied and ADF involvement has included two major areas of activity: Afghanistan and the Persian Gulf. These activities have seen the deployment of naval, air and land forces that have taken part in combat and combat support operations as part of the International Security Assistance Force (ISAF).