North Korean leader Kim Jong Un said his country will never again entertain denuclearization talks with foreign powers and will “never give up” nuclear weapons, state media reported Friday.

In a defiant speech at a Supreme People’s Assembly (SPA) meeting in Pyongyang, Kim also dared the U.S. to keep up economic sanctions on his country for “a thousand years.” 

“There will never be any declaration of ‘giving up our nukes’ or ‘denuclearization,’ nor any kind of negotiations or bargaining to meet the other side’s conditions,” Kim said, according to the Rodong Sinmun on Friday. 

“As long as nuclear weapons exist