Australia calls it Operation Sovereign Borders.
Rezoned all islands around the continent and then eventually the continent itself. Removing all land from migration zone to remove the legal rights of refugees in 2013.
mobile.abc.net.au/news/2013-05-16/parliament-excises-mainland-from-migration-zone/4693940

With compulsory off shore detention and a promise to never be settled in Australia if refugees arrive by sea.
They are not even referred to as refugees. They were called asylum seekers, then illegal immigrants then queue jumpers.

The first "boat people" that arrived in Australia were from Vietnam and were received like brave heroes. Now, we send even children to be locked in camps in neighbouring pacific nations.

There were deaths at sea. The government uses the statistics of decreased smuggling and boat arrivals to legitimise the practice.

It doesn't change the fact that the UN found the Australian government policies to be in breach of human rights.
https://www.hrlc.org.au/news/un-finds-australias-treatment-of-asylum-seekers-violates-the-convention-against-torture

mobile.abc.net.au/news/2013-05-16/parliament-excises-mainland-from-migration-zone/4693940