The country's ruler attended test firing of ballistic rockets by the Korean People's Army (KPA) and the state-run media reported Kim 'stressed the need to continue making miraculous achievements in bolstering up the nuclear force'.
The Korean Central News Agency (KCNA) said the artillery units 'demonstrated before the world their military might as a strong service capable of mounting a pre-emptive attack on the enemies any time and from any place', following the launches on Monday.
As he stressed the need to bolster North Korea's nuclear force, Kim Jong-un watched as three mid-range missiles were launched towards Japan in an apparent show of force as leaders from 20 major economies were in a summit in China, according to the Korean Times.
The launch also came four days before the 68th anniversary of the establishment of the North Korean regime and Kim has already marked the historic year with the country's test of a hydrogen bomb.
Since he took office in late 2011, Kim has sanctioned test fires of more than 30 ballistic missiles, including some which have the potential to fly as far as the U.S. territory of Guam.
In late August, the North test fired a missile from a submarine that flew about 500 kilometers, the longest flight by such a missile launched by the country as it continues to seek missiles capable of hitting targets on the U.S. mainland.
Current UN resolutions prohibit North Korea from any test of ballistic missile technology.