Kim Jong Un - really overdoing it

I mean this:

For a second day, North Korea appeared to be flexing its military muscles in the wake of a United Nations vote meant to cripple the nation's nuclear program.

North Korean leader Kim Jong Un said the country's "nuclear warheads need to be ready for use at any time," the North Korean state news agency KCNA reported Friday.

I don't know why it is necessary. Just looking at this picture

totally scared the crap out of me.

Mercy, please!