This is just speculation from bloggers and quotes from a Hezbollah leader, so it's hardly legitimate, but i can't help but think about it:

Hizballah leader Sheikh Hassan Nasrallah said a curious thing Saturday: Israel has recognized reality and is ready for a cease-fire in Lebanon, Nasrallah claimed, but it is the U.S. that insists that it fight on.

Listening the millenarian rubbish pouring out of the mouths of Bush and Blair last Friday about this being a fight led by the U.S. and its allies for a "new Middle East" of freedom from tyranny blah blah there was also a sense that this skirmish had been appropriated by the U.S. for its wider global war, and Iran, of course, is its prime target right now - with Hizballah being identified as an Iranian asset that could be destroyed.

I've always maintained that the "pro-Israel" position of the Bush administration, formulated and influenced by hardline American Likudniks (whom, it must be said, are hardly representative of mainstream Israeli thinking) is actually fundamentally bad for Israel. Its infantile, aggressive maximalism precludes Israel from doing what it will take to live at peace with its surroundings, instead demanding a confrontational approach in keeping with Jabotinsky's "Iron Wal" in which Israel's survival depends on crush and humiliating the Arabs.

Also similar thoughts from Talking Points Memo:

And there are other ominous indications of the US pressing for expansion the Israelis don't seem to want.

There's more here than the US not wanting a ceasefire before meaningful changes on the ground have happened in south Lebanon. Or at least I fear there is. This started because Israel doesn't want and won't tolerate a menacing militia building up on their northern border and lashing out with occasional raids or missile attacks, especially in the context of withdrawals from other areas.

The world has sat by for six years and let Hizbullah's anamolous position in south Lebanon be Israel's problem. Whether their response was wise or just, I'll set aside for the moment. It's not about totalitarianism or Afghanistan or Iraq, at least not in an operational sense, or dingbat fantasies about Freedom and Terror. But there do appear to be forces in Washington -- seemingly the stronger ones, with Rice just a facade -- who see this whole thing as an opportunity for a grand call of double or nothing to get out of the disaster they've created in the region. Go into Syria, maybe Iran. Try to roll the table once and for all. No failed war that a new war can't solve. Condi's mindless 'birth pangs' remark wasn't just a gaffe -- or perhaps it was a gaffe in the Kinsleyan sense of inopportunely saying what you really think. That seems to be the thinking -- transformation through destabilization.