North Korea's Kim Jong Un vows to build 'invincible' military while slamming US

North Korean leader Kim Jong Un vowed to build an "invincible" military to cope with what he called persistent US hostility.

North Korean leader Kim Jong Un reviewed powerful missiles developed to launch nuclear strikes on the U.S. mainland, as he vowed to build an "invincible" military to cope with what he called persistent US hostility, state media reported Tuesday.

In an apparent continued effort to drive a wedge between Washington and Seoul, Kim also used his speech at a rare exhibition of weapons systems Monday to stress that his military might isn't targeted at South Korea and that there shouldn't be another war pitting Korean people against each other.