"...Without the ground invasion they have pledged not to undertake, he could well survive as the overlord of western & southern Libya..."

"...Taken by itself, such name-calling might not matter so much. But the larger, unavoidable conclusion is that capturing or killing Gaddafi has now become an end in itself for the western allies (though perhaps not their Arab coalition partners), and that the war will not be deemed "won" until this objective is attained.

The implications are serious. Now the missiles and B52s have begun their dreadful work, Gaddafi knows, if he didn't already, that he's in a fight to the finish – and for him, there may be no escape. His course of action in the coming days will be influenced by this realisation, and may be consequently more extreme and more aggressive than otherwise......

The demonisation of Gaddafi has made it impossible for western leaders to countenance his continuation in power. But without the ground invasion they have pledged not to undertake, he could well survive as the overlord of western and southern Libya following a de facto partition, hostile, vengeful and highly dangerous.

This seems to be his plan. Far from giving up or drawing back, Gaddafi escalated the fighting around Benghazi at the weekend. Rather than abandon cities such as Zawiya, as Obama demanded, he is reportedly moving his troops into urban areas where they can less easily be targeted from the air. Meanwhile, his apparent willingness to use "human shields", his threats of retaliation across the Mediterranean area, and his designation of the whole of north Africa as a "war zone" raises the spectre of possible terrorist attacks and an alarming regression to his old ways.

Gaddafi has personalised this war, too. And he is not going to go quietly. Military superiority in the air will count for nothing if pro-regime army and air force units, militia and security forces, and civilian and tribal supporters who have remained loyal refuse to turn on him or kick him out of Tripoli. By its determination to "get Gaddafi", the west has made this a fight to the death – and death may be a long time in coming."