Operation Okra is the Australian Defence Force (ADF) contribution to the military intervention against the Islamic State of Iraq and the Levant (ISIL). The operation commenced on 31 August 2014, and its stated aim is to combat ISIL threats in Iraq. The force is part of Joint Task Force 633 in the Middle East, originally under the command of Major General Craig Orme. Orme handed over command of JTF 633 to Rear Admiral Trevor Jones in December 2014.