I suspect that few things are harder for the leaders of democracies than fighting or preparing for wars. Our president, Barack Obama, has no experience at preparing for them, not much at fighting them. That may be changing.
Vladimir Putin of Russia seems to have conquered Crimea. How much further his dreams of reconstituting the old Soviet Union go remains to be seen. If it's any distance at all, the West will have to do something about it, probably fight.
How eager a warrior Putin is, we'll have to see.
We'll have to see about ourselves too. Let's hope we're ready.