Cambodia's military chief has vowed to "smash the teeth" of anyone who does not support Prime Minister Hun Sen, who said it would be worth sacrificing 200 lives to stay in power after 32 years.

Hun Sen will effectively run unopposed in elections next year after a court dissolved the main opposition party and police detained its leader.

"Settlement in Cambodia remains an option for Nauru-determined refugees," a spokesman for the Department of Foreign Affairs and Trade (DFAT) said.

The Australian Government is sticking with Cambodia as a safe place for refugees to resettle, despite its own statements of concern about the crackdown on political rights and other basic freedoms.

Read the full article by Liam Cochrane about refugee resettlement from ABC News