Trump, who held unprecedented summits with Kim during his first term and has touted their personal rapport, said last week he would 'reach out to him again'

North Korean leader Kim Jong Un has called for bolstering nuclear forces this year during a visit to a nuclear material production base and nuclear weapons institute, state media KCNA reported on Wednesday.

North Korean leader Kim Jong Un called for "indefinitely" strengthening his regime's nuclear weapons capacity, state media reported Wednesday.