Look at Russia. We ain't bombing Moscow and are being very cautious about how we respond to them.

If they didn't have nukes?

We would have already levelled Moscow and installed their new leader.

As someone else noted, had Saddam Hussein and Momar Ghadaffi had nukes, they would still be in power right now.

To use it…

They have never been shy about it

They learned from the mistakes of Saddam, ghadafi and Maduro: ya wanna stay in power, get a nuke!