" a competent national leadership should focus on the new challenges posed by China "
the problem is that China is a very long way away from Europe. I , personally, don't think that Russia is planning a major action in Europe but they would be happy to retake Belarus and Ukraine and those pesky Balts if the chance was there (not all at once - just as & when the opportunity occurs).
China isn't a direct threat and never can be a direct threat - they can take Taiwan and cause all sorts of problems in the S China Sea but to 99% of Europeans that's not a real threat