Max Boot, in the LA Times (6-23-05):

No wonder public support for the war is plummeting and finger-to-the-wind politicians are heading for the exits: All the headlines out of Iraq recently have been about the rebels' reign of terror. But, lest we build up the enemy into 10-foot-tall supermen, it's important to realize how weak they actually are. Most of the conditions that existed in previous wars won by guerrillas, from Algeria in the 1950s to Afghanistan in the 1980s, aren't present in Iraq.

The rebels lack a unifying organization, ideology and leader. There is no Iraqi Ho Chi Minh, Fidel Castro or Mao Tse-tung. The top militant is Abu Musab Zarqawi, a Jordanian who has alienated most of the Iraqi population, even many Sunnis, with his indiscriminate attacks on civilians.

Support for the insurgency is confined to a minority within a minority — a small portion of Sunni Arabs, who make up less than 20% of the population. The only prominent non-Sunni rebel, Muqtada Sadr, has quietly joined the political process. The 80% of the population that is Shiite and Kurdish is implacably opposed to the rebellion, which is why most of the terror has been confined to four of 18 provinces.

Unlike in successful guerrilla wars, the rebels in Iraq have not been able to control large chunks of "liberated" territory. The best they could do was to hold Fallouja for six months last year. Nor have they been able to stage successful large-scale attacks like the Viet Cong did. A major offensive against Abu Ghraib prison on April 2 ended without a single U.S. soldier killed or a single Iraqi prisoner freed, while an estimated 60 insurgents were slain.

The biggest weakness of the insurgency is that it is morphing from a war of national liberation into a revolutionary struggle against an elected government. That's a crucial difference. Since 1776, wars of national liberation have usually succeeded because nationalism is such a strong force. Revolutions against despots, from Czar Nicholas II to the shah of Iran, often succeed too, because there is no way to redress grievances within the political process. Successful uprisings against elected governments are much rarer because leaders with political legitimacy can more easily rally the population and accommodate aggrieved elements...

...The biggest advantage the insurgents still have, aside from their total disdain for human life, is that they can get reinforcements from abroad to make up for their heavy losses. The coalition needs to do a better job of policing the Syrian border and pressuring Damascus to crack down on the influx of jihadis.

But even if the border gets sealed, pacifying Iraq will be a long, hard slog that will ultimately be up to the Iraqis. The U.S. needs to show a little patience. If we don't cut and run prematurely, Iraqi democracy can survive its birth pangs.