North Korean leader Kim Jong-un celebrated his birthday with a long wish-list of new weapons.
It included more accurate long-range missiles, super large warheads, spy satellites and a nuclear-powered submarine.
The military plans announced during one of the biggest political events in North Korea in the last five years may sound threatening - and it is indeed a threat.
But it's also a challenge. The timing of this message is key as it comes as US President-elect Joe Biden prepares to take office.
Mr Kim, who has also now been promoted to Secretary General (the highest rank of the ruling Worker's Party), is struggling to be heard outside his own country amidst the current tumult in the US.
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