We shall indeed have to deal with Russia again but, as long as Putin remains in power, there will be limits to that engagement. The truth is that we were completely open to a Russia that was part of the international community and had some form of capitalist economy and were willing to overlook certain excesses of that country - 'it is only the Russians after all - what can you expect, etc?'. Who in their right mind is going to rely on supplies of Russian oil and gas ever again? The harsh reality is that all the people with the big oil reserves are people with an extremely shady human rights record. We can whine all we want, and with good reason, but the bottom line is that the UK (and less publicly several others) have had to go cap in hand to Saudi Arabia to secure oil supplies. No one wants it, but the alternatives are not too great either.