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In improvising a response to the insurgency, the U.S. forces worked hard and had some successes. Yet they frequently were led poorly by commanders unprepared for their mission by an institution that took away from the Vietnam War only the lesson that it shouldn't get involved in messy counterinsurgencies. The advice of those who had studied the American experience there was ignored.

That summer, retired Marine Col. Gary Anderson, an expert in small wars, was sent to Baghdad by the Pentagon to advise on how to better put down the emerging insurgency. He met with Bremer in early July. "Mr. Ambassador, here are some programs that worked in Vietnam," Anderson said.

It was the wrong word to put in front of Bremer. "Vietnam?" Bremer exploded, according to Anderson. "Vietnam! I don't want to talk about Vietnam. This is not Vietnam. This is Iraq!"

This was one of the early indications that U.S. officials would obstinately refuse to learn from the past as they sought to run Iraq.

One of the essential texts on counterinsurgency was written in 1964 by David Galula, a lieutenant colonel in the French army who was born in Tunisia, witnessed guerrilla warfare on three continents and died in 1967.
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