HMAS Toowoomba during a 2018 deployment.Credit:Royal Australian Navy
The US and Iran have drawn back from full-blown military conflict in the wake of an American air strike that killed top Iranian general Qassim Suleimani on January 3 and Iranian missiles that hit US bases in Iraq in return.
Prime Minister Scott Morrison said the situation between the two countries had"stabilised — that is a very relative term in the Middle East"last week.
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But fears of further conflict remain high. Iranian military personnelshot down a passenger airline over the country last week in the mistaken belief it was a"hostile target".
HMAS Toowoomba's deployment was announced in August as part of Australia's efforts to stop piracy and ensure safety of navigation in the Middle East.
"This destabilising behaviour is a threat to Australian interests in the region,"Mr Morrison said in a statement at the time.
Defence Minister Linda Reynolds said the Toowoomba's departure"is essential to the security of our nation and our economy".