In mid-May, with Dahlan still absent, a new element was added to Gaza’s toxic mix when 500 Fatah National Security Forces recruits arrived, fresh from training in Egypt and equipped with new weapons and vehicles. “They had been on a crash course for 45 days,” Dahlan says. “The idea was that we needed them to go in dressed well, equipped well, and that might create the impression of new authority.” Their presence was immediately noticed, not only by Hamas but by staff from Western aid agencies. “They had new rifles with telescopic sights, and they were wearing black flak jackets,” says a frequent visitor from Northern Europe. “They were quite a contrast to the usual scruffy lot.”

On May 23, none other than Lieutenant General Dayton discussed the new unit in testimony before the House Middle East subcommittee. Hamas had attacked the troops as they crossed into Gaza from Egypt, Dayton said, but “these 500 young people, fresh out of basic training, were organized. They knew how to work in a coordinated fashion. Training does pay off. And the Hamas attack in the area was, likewise, repulsed.”

The troops’ arrival, Dayton said, was one of several “hopeful signs” in Gaza. Another was Dahlan’s appointment as national-security adviser. Meanwhile, he said, Hamas’s Executive Force was becoming “extremely unpopular I would say that we are kind of late in the ball game here, and we are behind, there’s two out, but we have our best clutch hitter at the plate, and the pitcher is beginning to tire on the opposing team.”

The opposing team was stronger than Dayton realized. By the end of May 2007, Hamas was mounting regular attacks of unprecedented boldness and savagery.

At an apartment in Ramallah that Abbas has set aside for wounded refugees from Gaza, I meet a former Fatah communications officer named Tariq Rafiyeh. He lies paralyzed from a bullet he took to the spine during the June coup, but his suffering began two weeks earlier. On May 31, he was on his way home with a colleague when they were stopped at a roadblock, robbed of their money and cell phones, and taken to a mosque. There, despite the building’s holy status, Hamas Executive Force members were violently interrogating Fatah detainees. “Late that night one of them said we were going to be released,” Rafiyeh recalls. “He told the guards, ‘Be hospitable, keep them warm.’ I thought that meant kill us. Instead, before letting us go they beat us badly.”

On June 7, there was another damaging leak, when the Israeli newspaper Haaretz reported that Abbas and Dayton had asked Israel to authorize the biggest Egyptian arms shipment yet—to include dozens of armored cars, hundreds of armor-piercing rockets, thousands of hand grenades, and millions of rounds of ammunition. A few days later, just before the next batch of Fatah recruits was due to leave for training in Egypt, the coup began in earnest.

Fatah’s Last Stand

The Hamas leadership in Gaza is adamant that the coup would not have happened if Fatah had not provoked it. Fawzi Barhoum, Hamas’s chief spokesman, says the leak in Al-Majd convinced the party that “there was a plan, approved by America, to destroy the political choice.” The arrival of the first Egyptian-trained fighters, he adds, was the “reason for the timing.” About 250 Hamas members had been killed in the first six months of 2007, Barhoum tells me. “Finally we decided to put an end to it. If we had let them stay loose in Gaza, there would have been more violence.”

“Everyone here recognizes that Dahlan was trying with American help to undermine the results of the elections,” says Mahmoud Zahar, the former foreign minister for the Haniyeh government, who now leads Hamas’s militant wing in Gaza. “He was the one planning a coup.”