Nuking other countries

Should we nuke every country that oposses the US ?... I do not think we should because if we nuke one country thier allies might want to nuke us so then we would have to nuke them and trier friends and then thier would be radiation all over the world and that would not be good. That could be the end of man kind and that would not be good because i dont want it to be the end................................ Do you ?????????????/