North Korea's leader has vowed to build an "invincible military" in the face of what it says are hostile policies from the United States, report state media.
Kim Jong-un added that weapons development was for self-defence, and not to start a war.
Kim made the comments at a rare defence exhibition while flanked by a variety of large missiles.
North Korea has recently tested what it claims to be new hypersonic and anti-aircraft missiles.
The South meanwhile has tested its own submarine-launched weapon.
In his speech at the Self-Defence 2021 exhibition held in Pyongyang, which featured an array of military hardware including tanks, Kim addressed the military build-up in the South and said that North Korea did not want to fight its neighbour.
"We are not discussing war with anyone, but rather to prevent war itself and to literally increase war deterrence for the protection of national sovereignty," he said.
Kim also accused the US of stoking tensions between North and South Korea.
He added that there was "no behavioural basis" to make North Korea believe that the US was not hostile.
