It is hard to see why.
Moscow could have been our friend if we had wanted that.
We rightly viewed the old Soviet Union as a global menace to freedom.
But Russia is no such thing, just a major regional power sick of being humiliated and pushed around by ignorant outsiders.
I watched the old Soviet menace vanish on the streets of Moscow in August 1991 when a KGB putsch failed, the Communist Party was shattered in pieces, and the USSR collapsed in a cloud of rust.
Russians always believed there was an unspoken agreement that, in return for this, they would be allowed their dignity. They now believe that agreement has been broken.
What was left after 1991 was Russia, a proud and courageous people living amid the wreckage left by 74 years of Marxism and hoping to revive their ravaged country. We could have helped them.
By indulging Boris Yeltsin's debauched reign (during which he shelled his own parliament while the West looked on complacently), we made Russian voters see Vladimir Putin as an attractive alternative.
The Putin government is squalid, but nothing like as bad as that of China, with whom we are on good terms.
Rather than recognising that the Cold War was over, we re-started it for no good reason, encouraging Russia's neighbours to join the EU or Nato as if the USSR still existed.
In recent months, the EU and the United States have been willing to wound but afraid to strike.
They have aggressively sought to detach Ukraine from Russia and draw her into the EU orbit, knowing very well that this would infuriate Moscow.
Senior American, German and EU figures have gone to Kiev to egg on the anti-Russian crowds. Imagine how you would feel if Russia's Foreign Minister turned up at SNP rallies in Edinburgh, backing Scottish independence.
Putin's Crimean games are a sarcastic response.
The unspoken message is: 'You like breakaway movements and meddling in other people's business? Try this for size.'
And now, having raised hopes we cannot fulfill, we have awakened the ancient passions of this cruel part of the world and who knows where our vainglorious folly will now lead?
I chose a long time ago to bear witness to what goes on.
with pleasure to see the bear awaken.