Since the end of the war the RAN has continuously maintained a frigate in the Persian Gulf to protect Iraq's oil infrastructure and participate in counter-smuggling operations. Twelve Australian sailors were deployed to Umm Qasr, Iraq between January and October 2004 to join the multi-national training team working with the Iraqi Coastal Defense Force. The RAN has also assumed command of coalition forces in the Persian Gulf on two occasions; Combined Task Force 58 in 2005 and Combined Task Force 158 in 2006.