On Jan. 16, two days after a killer earthquake hit Haiti, a team of senior military officers from the U.S. Central Command (responsible for overseeing American security interests in the Middle East), arrived at the Pentagon to brief Joint Chiefs of Staff Chairman Adm. Michael Mullen on the Israeli-Palestinian conflict. The team had been dispatched by CENTCOM commander Gen. David Petraeus to underline his growing worries at the lack of progress in resolving the issue. The 33-slide, 45-minute PowerPoint briefing stunned Mullen. The briefers reported that there was a growing perception among Arab leaders that the U.S. was incapable of standing up to Israel, that CENTCOM's mostly Arab constituency was losing faith in American promises, that Israeli intransigence on the Israeli-Palestinian conflict was jeopardizing U.S. standing in the region, and that Mitchell himself was (as a senior Pentagon officer later bluntly described it) "too old, too slow ... and too late." 

[UPDATE: A senior military officer denied Sunday that Petraeus sent a paper to the White House. "CENTCOM did have a team brief the CJCS on concerns revolving around the Palestinian issue, and CENTCOM did propose a UCP change, but to CJCS, not to the WH," the officer said via email. "GEN Petraeus was not certain what might have been conveyed to the WH (if anything) from that brief to CJCS."  (UCP means "unified combatant command," like CENTCOM; CJCS refers to Mullen; and WH is the White House.)] 

The Mullen briefing and Petraeus's request hit the White House like a bombshell. While Petraeus's request that CENTCOM be expanded to include the Palestinians was denied ("it was dead on arrival," a Pentagon officer confirms), the Obama administration decided it would redouble its efforts -- pressing Israel once again on the settlements issue, sending Mitchell on a visit to a number of Arab capitals and dispatching Mullen for a carefully arranged meeting with the chief of the Israeli General Staff, Lt. General Gabi Ashkenazi. While the American press speculated that Mullen's trip focused on Iran, the JCS Chairman actually carried a blunt, and tough, message on the Israeli-Palestinian conflict: that Israel had to see its conflict with the Palestinians "in a larger, regional, context" -- as having a direct impact on America's status in the region. Certainly, it was thought, Israel would get the message. 

Israel didn't. When Vice President Joe Biden was embarrassed by an Israeli announcement that the Netanyahu government was building 1,600 new homes in East Jerusalem, the administration reacted. But no one was more outraged than Biden who, according to the Israeli daily Yedioth Ahronoth, engaged in a private, and angry, exchange with the Israeli Prime Minister. Not surprisingly, what Biden told Netanyahu reflected the importance the administration attached to Petraeus's Mullen briefing: "This is starting to get dangerous for us," Biden reportedly told Netanyahu. "What you're doing here undermines the security of our troops who are fighting in Iraq, Afghanistan and Pakistan. That endangers us and it endangers regional peace." Yedioth Ahronoth went on to report: "The vice president told his Israeli hosts that since many people in the Muslim world perceived a connection between Israel's actions and US policy, any decision about construction that undermines Palestinian rights in East Jerusalem could have an impact on the personal safety of American troops fighting against Islamic terrorism." The message couldn't be plainer: Israel's intransigence could cost American lives. 

There are important and powerful lobbies in America: the NRA, the American Medical Association, the lawyers -- and the Israeli lobby. But no lobby is as important, or as powerful, as the U.S. military. While commentators and pundits might reflect that Joe Biden's trip to Israel has forever shifted America's relationship with its erstwhile ally in the region, the real break came in January, when David Petraeus sent a briefing team to the Pentagon with a stark warning: America's relationship with Israel is important, but not as important as the lives of America's soldiers. Maybe Israel gets the message now. 

Mark Perry's newest book is Talking To Terrorists.

[UPDATE 2--from Mark Perry: A senior military officer told Foreign Policy by email that one minor detail in my report, "The Petraeus Briefing" was incorrect: a request from General Petraeus for the Palestinian occupied territories (but, as I made clear, not Israel itself), be brought within CENTCOM's region of operation was sent to JCS Chairman Mullen - and not directly to the White House. My information was based on conversations with CENTCOM officials, who believed they were giving me correct information. It is significant that the correction was made, not because it is an important detail, but because it is was inconsequential to the overall narrative. In effect, the U.S. military has clearly said there was nothing in this report that could be denied.]