To be in war with France, our militaries will have to confront each other, and one side will have to start shooting. I can't foresee that happening.
I thought maybe you had something specific in mind, but I see now that you did not.
FYI, I wrote this on Feb. 24:
Nato, ANZUS, the OAS, and Seato and all the other alphabet soup organizations set up in the Cold War were designed by the US to further its interests of protecting our allies worldwide from Communist aggression. No organization, other than perhaps NORAD, was set up to defend the US from military attack. The idea would have been considered absurd had it been proposed; if we needed Europe's help, then the free world was in deep doo-doo already.
So, we spent our money, and we manned the ramparts, and we lost some lives along the way, and lo and behold! We won the war. The Commies surrendered, and one superpower was left standing. All those countries that were part of the alphabet soup organizations, including France, Germany, Belgium, New Zealand, survived the threat of nuclear war without a scratch, coming through with their nations sovereign and their people free. Because of that, because we've eliminated the Soviet threat from their home continent, we have also eliminated their need for us.
Suddenly, the unthinkable happens, and, mon dieu, it is the US, their protector, that is under attack. And what do we see? That the protection of all those treaties and alliances set up during the cold war flowed in one direction. Had France been attacked on 9/11 with the Eiffel Tower blown up and its military installations bombed, is there any doubt that the US would be doing exactly the same thing that it is doing that it is doing now? Yet France and the other "axis of weasel" countries, Germany and Belgium, the "frenchlings" of the world, refuse to extend to the US the same understanding of what an alliance entails.
They are no longer our friends, they are no longer allies, they are not quite enemies, but their support for our enemies endangers our people and so makes them akin to an enemy. They are opponents. We cannot be tied in mutual defense treaties with opponents, especially those who fail to follow their obligations in the very first instance when they have been called on for help. The schism with France will result in the death of Nato, could help bust up the EU and dreams of European unity, and will result in the end of the UN as anything other than a debating society. When all this comes about, it will be the French, more than the Russians, more than the Chinese, who caused it. It did not have to be this way--the UN and Nato might have done the right thing, and France might have been a good ally, dragged slowly but eventually to vote for disarmament of Iraq, as we all thought it would back when 1441 passed. Something happened since then, something that will change the structure of the international community for a long time to come. If justice is served, that structure will be changed to the great detriment of France and its fellow frenchlings.