Israel.

Chill out, everyone. This isn't news.

America, China, Russia, and every other nuke-capable country has contingency plans against a myraid of other countries. It's all part of being prepared in case of even the most unforeseeable situations.

Would it surprise you to learn that the US probably also has plans against Israel and France and Germany -- even though they're all allies? All countries do it just in case.

As for the tactical nukes (smaller ones that might be used in battle), I believe -- just as the big nukes have been -- that their existence is used primarily as a deterrent. Many countries who aren't now afraid to start little skirmishes with the US might think twice if they knew we had it in us to use nukes against their troops.

Anyway, the point is: Yeah, it might happen, but it probably won't. All in all, it isn't the US you should be worried about.