It would be up to the main recipents of German attention in WW II: Poland and France. Poland is probably okay with this in the present situation. France probably doesn't care.
Well I think that the French would be quite disturbed if they thought they could not control the Germans, which of course they cannot (though I doubt it occurred to Chirac that his silliness might have awaken a "sleep bridge-troll," as it were, by encouraging an assertive Germany under his wing.) France is currently the only nuclear power on the Continent, a point that they are insistent on making in every conversation of this sort. I imagine that they will start howling at the moon in Paris if Berlin starts building a nuclear triad. The nations that would be quite upset would be Russia, the UK and Italy, IMHO.
It will be interesting to see what happens if the SDS and the Greens get thrown out this year, and Schroeder is left hanging until 06. If the CDC comes back into power and Bush is reelected then they may just kiss and makeup, and then this is all mostly theater. Still, it will be pleasant to see the Euros actually face up to the real implications of a fed up USA. I almost think it never occurred to them what the actual implications were.