For the first time in the Syrian civil war, Al-Qaida fighters are hunkered down on Israel's doorstep, and Israelis in the lush, hilly Golan Heights who have long considered Syrian President Bashar Assad their bitter foe are **w worried about something more omi**us ? that they could become the militants' next target. The push into the Golan by the Nusra Front, as al-Qaida's branch in Syria is k**wn, comes just two weeks after Israel ended a 50-day war against Hamas on its southern border With the Gaza Strip, giving the conflict-weary nation a**ther cause for concern. Last week's seizure of the strategic Quneitra border crossing by the Nusra Front fighters who expelled Assad's forces from the area ? and abducted 45 U.N. peacekeepers in the process ? has created an unprecedented situation that has brought the extremists to within just a few yards of Israeli positions.