On an individual case basis I would defend myself and my family. On a national basis and given the scenerio that Don described one can assume that the agressor has the military advantage so I say, "Screw it". Let them have their little victory and then start making life miserablre for them with non-violent civil disobedience and make them look like the bullies that they are. World opinion and/or the Big Guy will take care of the rest...

Bobert