At RealClearDefense Michael Peck gives an example of just how uncommitted to their own defense the Germans are:
The German magazine Spiegel recently revealed that most of the Luftwaffe’s—the modern German air force’s—128 Eurofighter Typhoons are not flightworthy.
In fact, only about ten of the aircraft are ready for operations, Spiegel said. This raises doubts about Germany’s ability to meet its NATO defense commitments.
“The problem is complicated,” according to Spiegel.
Actually, the problem is extremely simple. The question is not whether Europe is important to us. It’s whether it’s more important to us than California. Or Louisiana.
I think the answer is obvious. The Europeans will either look after their own defense or they won’t. We shouldn’t carry water for them while they complain about what a lousy job we’re doing and how awful we are. Either they’re sovereign nations or they aren’t.
Again, I don’t think that the U. S. should withdraw from NATO. I think we should remain NATO members in the sense that Germany is, in a largely symbolic capacity.