"...Outre-mer was finally overrun by Muslim armies. But Israel will be destroyed from within"

Hate to say that I mostly agree with neoconish Douthat in the NYTimes/ here

"... The first reason was geographic: the Holy Land is easier to conquer than defend, because its topograpy and regional position leave it perpetually vulnerable to invasion. The second was diplomatic: the Crusaders were perpetually falling out with their major neighbors, from Byzantium to Egypt, and the support they enjoyed from Western Europe was too limited to save them from extinction. The third was demographic: the ruling class of Outremer, primarily Frankish knights and their retainers, was a minority in a territory whose inhabitants were largely Eastern Orthodox and Muslim, and they had difficulty achieving the kind of integration that long-term stability required.

A decade ago, before the collapse of the peace process, the Israelis seemed to be faring better than Outremer on all three fronts. Their potent armed forces and nuclear deterrent more than offset the weakness of their geographic position. After decades of isolation, they had forged reasonably stable relationships with many regional powers — including Turkey, Jordan and Egypt — and an enduring bond with the world’s superpower, the United States.....

Ten years later, though, only the military advantage endures. Diplomatically and demographically, Israel increasingly faces the same problems that bedeviled the 12th-century kings of Jerusalem.

In the wake of the Gaza and Lebanon wars, and now the blockade-running fiasco, the Jewish state is as isolated on the world stage as it’s been since the dark Zionism-is-racism years of the 1970s. Meanwhile, its relationship with its Arab citizens is increasingly strained, the occupation of the Palestinian West Bank seems destined to continue indefinitely, and both Arab populations are growing so swiftly that Jews could soon be a minority west of the Jordan River.

Israel can probably live with diplomatic isolation so long as the American public remains staunchly on its side. But it will have a harder time surviving the demographic transformation of its territory. If the Jewish state can’t extricate itself from the West Bank, it may be forced to choose between the quasi-apartheid of a permanent occupation, and the dissolution that would likely follow from giving Palestinians a significant voice in Israel’s politics.

Israel’s critics often make this extrication sound easy. In reality, it promises to involve enormous sacrifices, of land and everyday security alike — whether in the form of extraordinary concessions to a divided Palestinian leadership, or a unilateral withdrawal from the West Bank that would be more wrenching than the 2005 retreat from Gaza.

What’s more, either approach would almost certainly invite stepped-up violence from the irreconcilable Palestinian factions and their Iranian and Syrian backers, who will see any retreat as a cue to escalate the struggle...."