Indeed times change. The trouble is we don't know which way. As it stands we have a technological and economic advantage over the Russians. As long as we maintain those we'll be fine (and given the huge difference in economic power it can be maintained). And there's always the threat of MAD to make sure that there's no actual invasion. The Russians can become a threat, but they arn't one at the moment (nor is the EU one to Russia). Spending should be increased when they become a threat, the current spending is enough to cover the 'long-term strategic threat which didn't come out of it's shell yet' (it rimes!).