Cambodian Prime Minister Hun Sen said Thursday he was confident there will be "no war" on the Korean Peninsula despite military posturing between Washington and Pyongyang, adding that he did not see the need to evacuate Cambodians working there.

"I can say (with) 99.99 (percent certainty), there will be no war," he said at a graduation ceremony in Phnom Penh.

"The issue is that the fighting will not bring an end to the conflict, but the mass destruction will be in South Korea and Japan and therefore, the United States will have to consider it seriously on those options," he said.

"Of course, the United States will be less or little affected given its far distance, but there will be significant consequence on American soldiers in South Korea and Japan," he added.

Hun Sen said there is, therefore, no need for Cambodia to ever consider evacuating the more than 40,000 Cambodians working in South Korea.

Evacuation of Cambodian citizens or its diplomats from abroad at a time of tension out of fear of war, chaos or natural disaster is not Cambodia's primary choice, the premier said.

He said in 2014, he refused to allow Cambodian diplomats to leave Pyongyang even though North Korea was suggesting they leave due to possible war, and a similar case when he rejected Cambodian diplomats' request to leave Japan following the March 2011 earthquake and nuclear disaster.

Meanwhile, Hun Sen also appealed to all parties concerned for "utmost restraint," saying there will be "no winner but all losers, and the real losers are their neighbors" should war break out.

He also expressed hope that proper solutions to the Korean Peninsula tensions be sought through the resumption of six-party talks and other peaceful means.