North Korean leader Kim Jong Un will unveil plans to bolster his nuclear forces at an upcoming ruling party meeting, state media reported Wednesday, after a missile launch the despot said would bring ¡°excruciating mental agony¡± to his enemies.

The landmark congress of North Korea¡¯s ruling Workers Party is expected in the coming weeks and is its first in five years.

Overseeing a ballistic missile test on Tuesday, Kim said the conclave ¡°will clarify the next-stage plans for further bolstering up the country¡¯s nuclear war deterrent,¡± the state-run Korean Central News Agency (KCNA) said.