According to all Halachic opinions, Lebanon is part of Eretz Yisrael, from which it is
forbidden to voluntarily withdraw from once it is in Jewish hands.
"Ghajar" may seem only "half a village", but by handing it over to Hizbollah
http://www.jpost.com/Israel/Article.aspx?id=195676it will only hasten Israel
having to retake it, as the Lubavitcher Rebbe predicted