In his maiden speech at the United Nations General Assembly on Tuesday, US President Donald Trump threatened to "totally destroy" the Democratic People's Republic of Korea if need be.

In his earlier remarks, Trump has called on China and Russia do more to restore peace on the Korean Peninsula, but he has been adding fuel to the fire by launching frontal attacks on the DPRK leader, as he did at the UN General Assembly.

On Sept 11, the UN Security Council unanimously passed Resolution 2375 to impose the strictest sanctions on Pyongyang for conducting its sixth and to date strongest nuclear test on Sept 3. But it seems the belligerent attitude of Washington toward Pyongyang prompted the latter to test-fire a missile over Japan into the Pacific Ocean despite the fresh UN sanctions and further escalating tensions in Northeast Asia.