'You're Not Accountable, Jack'

"You really don't want me to help Petraeus?" Keane asked. "Dave Petraeus, no matter who he wants to talk to over there, no matter what size he is, shape he is, what his views are, given Petraeus's responsibility -- he's got the toughest job anybody in uniform has -- why wouldn't you let him have that?"

"No," Mullen said, "I don't want to take the chance. I don't want you to do it."

End of meeting.

Afterward, when Keane found that he couldn't get clearance to go to Iraq, he called John Hannah, Cheney's national security adviser, to report what had happened. Shortly afterward, Keane received a call from Army Lt. Gen. Skip Sharp on Mullen's staff.

"We have an unusual request," Sharp said. "We have a request from the White House to provide assurances that General Keane will be able to visit Iraq and assist General Petraeus as he has been doing in the past." Sharp was apparently doing some staff work before passing the request to Mullen. "This is really bizarre. Do you have any idea why this would be happening?"

"Yeah, of course," Keane said. "I've been told I can't go."

"Who told you that?"

"The chairman." There was a long silence. Finally, Keane said, "Skip, are you there?"

"I'm trying to figure out what the hell is going on," Sharp said.

Keane later spoke with Lt. Gen. Peter Chiarelli, senior military assistant to Defense Secretary Gates.

"The secretary has received some notes," Chiarelli said, so now the secretary and his office were telling everyone, "General Keane, as in the past, as well as in the future, can go into Iraq to assist General Petraeus whenever they want it to happen. We have no problem with any of that."

Who sent the notes?

There were two, said Chiarelli -- one from the vice president and another from the president.

* * *

In early March 2008, Esquire magazine published a long article by Thomas P.M. Barnett, a former professor at the Naval War College who had traveled with Fallon to the Middle East. Headlined, "The Man Between War and Peace," the 7,500-word article was mostly laudatory but portrayed Fallon as "brazenly challenging" Bush and Cheney on Iran policy.

Fallon, who was in Baghdad, realized instantly the uproar it would cause. He called Gates.

"I think I need to be gone," Fallon said.

"Okay," Gates said.

Later that afternoon, Gates went before the television cameras. "I have approved Admiral Fallon's request to retire with reluctance and regret," he said. "Admiral Fallon reached this difficult decision entirely on his own. I believe it was the right thing to do even though I do not believe there are, in fact, significant differences between his views and administration policy."

* * *

Keane, in Baghdad for another visit, saw an opening. At 3:27 p.m. the next day, March 12, he sent an e-mail to Chiarelli.

"Subject: Food for Thought

"Pete, a way ahead after Fox Fallon: Announce Petraeus as replacement but do not assign till fall or early winter. . . . Assign Odierno, who will have had six months back in states, to replace Petraeus." Gen. Raymond T. Odierno, a towering Army officer, had previously been the corps commander in Baghdad. "Believe this provides the strongest team we have to the key vacancies. For what it's worth. Best, JK."

Chiarelli e-mailed back 20 minutes later.

"Sir -- do you want me to pass to the SD?" SD was shorthand for the secretary of defense.

By all means, Keane said.

* * *

While in Iraq, Keane talked to Petraeus about his future. Petraeus's next assignment -- commander of NATO -- seemed set.

NATO was important, Keane said, but its time had passed. The international center of gravity had moved to the Middle East. "We're going to be here for 50 years minimum, most of the time hopefully preventing wars, and on occasion having to fight one, dealing with radical Islam, our economic interests in the region and trying to achieve stability," Keane said.

This shift would have huge implications for how the U.S. military would be educated and trained. "We're going to do it anyway because we don't have a choice," Keane said. "So the issue is: Get over it. Come to grips with it." The Army didn't want that. "It wants to end a war and go home. But that's not going to happen."

Petraeus seemed to agree but waxed nostalgic about NATO.

The phone rang. It was Chiarelli.

"Three o'clock, okay, I've got it," Petraeus said into the phone. He hung up and turned to Keane. "Secretary of defense wants to talk to me at three o'clock."

"You know what this is, don't you?" Keane asked.

"I suspect I know."

"Hopefully, you'll give him the right answer."

* * *

On April 7, 2008, Gates invited Keane to brief him at the Pentagon.

"Assign Petraeus to CentCom," Keane urged. Delay the assignment until the fall. Make Odierno the new Iraq commander. Odierno was an unsung hero with intellect and moral courage, Keane said.

"Let's be frank about what's happening here," Keane told Gates. "We are going to have a new administration. Do we want these policies continued or not? Do we want the best guys in there who were involved in these policies, who were advocates for them? Let's assume we have a Democratic administration and they want to pull this thing out quickly, and now they have to deal with General Petraeus and General Odierno. There will be a price to be paid to override them."

* * *

Gates knew that Petraeus was the natural choice to replace Fallon. Two weeks later, on April 23, Gates called a news conference.

"With the concurrence of the chairman of the Joint Chiefs of Staff," Gates said, "I have recommended and the president has approved and will nominate General David Petraeus as the new commander of Central Command." Odierno would be nominated to return to Baghdad as the new Iraq commander, replacing Petraeus sometime in the late summer or fall.

Asked by a reporter whether the move marked a "stay-the-course approach," Gates replied, "I think that the course, certainly, that General Petraeus has set has been a successful course. So frankly, I think staying that course is not a bad idea."

Brady Dennis and Evelyn Duffy contributed to this report.