Gold will react the same as it did to Spain, Italy, Cyprus, Israeli attack on Iran, Straits of Hormuz, North Korea, Deepwater Horizon, Russian attack on Ukraine and all the other global emergencies that were going to send gold to the moon.
It won't do anything, probably drop a little.
Gold's yesterday's punt, it's illiquid and no longer considered the safe haven it was years ago. A flash-in-the-pan.