North Korea hasn't had much to say publicly about President Trump's 12-day Asia tour, including his tough criticism of the communist country during a speech to South Korea's national legislature.
The Rodong Sinmun on Sunday issued an article titled "Trump laid bare his true nature as destroyer of the world peace in his Asia tour", criticizing his remarks and speeches during trips to South Korea, Japan and China.
In a speech to South Korea's Parliament on Wednesday, Mr Trump warned Pyongyang not to underestimate the United States, while offering leader Kim Jong Un a better future if he gives up his nuclear ambitions.
The US administration thinks China's economic leverage over North Korea is the key to strong-arming Pyongyang into halting its nuclear weapons and missile programmes.
"The future of this region and its lovely people must not be held hostage to a dictator's twisted fantasies of violent conquest and nuclear blackmail", he said during a speech in Vietnam at the annual Asia Pacific Economic Cooperation (APEC) forum.
North Korea has dominated Trump's trip, which has so far swept in Japan, South Korea, China and Vietnam.
It said Trump's warnings "can never frighten us or put a stop to our advance", according to the state-run KCNA news agency, quoting a Pyongyang foreign ministry spokesman.More news: SAFA point to development following World Cup qualification failure
The South Morning China Post quoted military officials describing this as a clear warning to North Korea, which involve three USA aircraft carriers.
"The strike force plans to conduct air defense drills, sea surveillance, replenishments at sea, defensive air combat training, close-in coordinated maneuvers, and other training", said a statement from the Navy's 7th Fleet, which is responsible for monitoring the Pacific including North Korea.
It is the first such USA triple-carrier drill in the region for a decade.
South Korean military said it's the first time since 2007 that the three battle groups of the USS Ronald Reagan, the Theodore Roosevelt and the Nimitz have operated together in the Western Pacific.
During Saturday's summit, Moon and Xi also agreed to quickly normalize bilateral exchanges in all sectors, Yoon added, repeating what was said in the agreement announced last month when the two countries agreed to end a year-long standoff over the deployment of a USA anti-missile system.
The US has been sending its strategic assets, also including long-range bombers, to the region more frequently for patrols or drills amid accelerating North Korean efforts to expand its nuclear weapons program.
It has repeatedly threatened to launch ballistic missiles into the waters around the USA territory of Guam.