Exactly. Neither the UN, the US or Israel can transfer Syrian territory to the Lebanese without their consent. That is why its puzzling the Har Dov issue is even being raised. And as Shlomo Avineri observes, the chances of obtaining Dasmascus' agreement to the move in the absence of its refusal to recognize Lebanon's independence is slim to none. It shouldn't even be on the table and every one knows that Hezbollah would not stop attacking Israel even if that issue was somehow settled. Hezbollah's "last territorial demand" would turn to be the Middle Eastern equivalent of Hitler's "last territorial demand" in Europe - the terrorist group would come up with new pretexts to keep the fires stoked and the conflict would continue.
(Go Israel, Go! Slap 'Em Down Hezbullies.)