There are only two countries which could fight back.
UK and us.
Germany though does have a good army and great equipment, but would their elected officials screw things up.
The rest of Europe forget and Turkey please they only joined because Greece was there.
Germany to shut down coal-fired plants, extend power grid
Germany to shut all nuclear reactors
So how is Germany going to get energy for industry and heating? Why predominately from Russian gas pipelines after the alt.energy craps out, thus becoming a client state of Russia on a short leash.
The Bundeswehr, NATO's third largest force, becomes a non-factor in any collective defense against Russian aggression.