North Korea has underscored its missile and nuclear prowess and criticized South Korea for its recent military drills as the North on Monday marked the 30th anniversary of the death of Kim Il Sung, who is regarded as the country's founder.
The country's current leader, Kim Jong Un, is the grandson of Kim Il Sung.
The ruling Workers' Party newspaper Rodong Sinmun carried a large portrait of the late founder on its front page. It called for loyalty to the younger Kim, who succeeded his father and grandfather as leader of North Korea.
It also carried a photo of the ICBM-class Hwasong-18.
The newspaper said the country has become the world's strongest power that no one can touch, indicating the nuclear and missile development programs under Kim Jong Un.
The Rodong Sinmun also carried a statement by Kim Yo Jong, the younger sister of Kim Jong Un.
Kim Yo Jong lashed out at South Korea's resumption last month of live-fire artillery drills near the land and maritime borders as an "explicit provocation that aggravates the situation."
She also criticized the Freedom Edge joint drills conducted by the United States, Japan and South Korea in June, making Pyongyang's confrontational stance clear.
Her statement said in case it is judged that the drills violated the sovereignty of North Korea and committed an act tantamount to a declaration of war, "our armed forces will immediately carry out its mission and duty assigned" by the country's Constitution.