Syria has stated that if Israel gets THAT close to Damascus, they would intervene.
Iranian report: Suicide bombers en route to Lebanon
Iranian news agency claims expeditionary force of suicide bombers sent from Tehran via Syria to Lebanon. Its goal: To wreak havoc near military, civilian targets, trigger civil war in Lebanon
http://www.ynetnews.com/articles/0,7340,L-3281418,00.html
Distance to Damascus from the north-east point of Israel is about 45 miles.