"Operation Sovereign Borders (OSB) is a border protection operation led by the Australian Defence Force, aimed at stopping maritime arrivals of asylum seekers to Australia. The operation is the outcome of a 2013 federal election policy of the Coalition, which commenced on 18 September 2013 after the election of the Abbott government. The operation has implemented a "zero tolerance" posture towards what it has termed "Illegal Maritime Arrivals" − a change in terminology from the previous government's "Irregular Maritime Arrivals" − in Australia, in conjunction with mandatory detention in offshore detention facilities."
Note to self: read about the 2013 election
https://osb.homeaffairs.gov.au/ https://www.asrc.org.au/wp-content/uploads/2013/07/Operation-Sovereign-Borders-May-2014.pdf https://en.wikipedia.org/wiki/Operation_Sovereign_Borders
https://www.aph.gov.au/About_Parliament/Parliamentary_Departments/Parliamentary_Library/pubs/rp/rp1314/FedElection2013
