The North Korean navy’s botched launch of a brand-new destroyer this week revealed a key vulnerability: His massive military is woefully equipped.

North Korea attempted to launch a new 5,000-ton naval destroyer on Wednesday, but the ship suffered a “major accident,” according to state media outlet KCNA, which reports the hull has been damaged. And North Korean dictator Kim Jong Un is not happy about it, to say the least.

Kim promised to punish those responsible for the “catastrophic failure” after the naval vessel partially capsized during a ceremony attended by the leader.