North Korea appears to have skipped an annual mass rally against the United States on the 70th anniversary of the Korean War this week amid a stalemate in nuclear negotiations and coronavirus concerns.

In the past, North Korea usually held mass anti-US rallies at Kim Il-sung Square in Pyongyang on the June 25 anniversary of the 1950-53 Korean War, but it skipped the event in 2018 and 2019 after landmark summits between President Donald Trump and North Korean leader Kim Jong-un in Singapore and Hanoi, respectively.

On Friday, North Korean media outlets, including the official Rodong Sinmun and the Korean Central News Agency, did not report on any anti-US mass rallies marking the 70th anniversary of the outbreak of the war.

On Thursday, the North released a paper by the foreign ministry's Institute for Disarmament and Peace, saying strengthening its war deterrence is the "final option."

It vowed to further build up its "strength to contain the persistent nuclear threats from the US." and claimed the policies and nuclear threats from the US became more "aggressive" after their summit in Singapore.

The North appears to be toning down its anti-US rhetoric to leave room for negotiations in the future by expressing discontent toward the US on paper but avoiding any further provocations.

During the Korean War, which ended in a truce and not a peace treaty, the US led the 21-nation Allied Forces to help South Korea repel the Chinese-backed communist troops invading from the North. (Yonhap)