In August, al Nusra Front jihadists took control of Syria's side of the border crossing with Israel and kidnapped over 40 United Nations peacekeepers — who have since been released.

But al Nusra Front, an al Qaeda-affiliate, isn't Israel's only threat from Syria. President Bashar al-Assad's military, in a possible effort to bait Israel into its civil war to shore up Arab sympathies, has been lobbing mortars across the border. Just a few weeks ago, the Israeli military shot down a Syrian plane flying over the Golan Heights — the first time it has done so since the 1980s.

VICE News travels to Israel's "quiet border" in the Golan Heights, where members of al Nusra Front are now a visible threat.

Read "The Explosive End of Israel's 'Quietest Border'"

Read "Islamic State Fighters Capture Jordanian Pilot After Downing Coalition Warplane in Syria"

Read "The Syrian Regime Will Now Allow Desperately Needed Aid Into Rebel-Held Regions"

Read "New Evidence Suggests Israel Is Helping Syrian Rebels in the Golan Heights"

Watch "A Fugitive and his Family: Escape to the Islamic State"