But as the fighting tips in the Assad government's favor, Israeli officials have expressed concern that Iran and Hezbollah may gain a permanent foothold in Syria and possibly establish a presence along the border in the Golan Heights.
The Syrian Army command said in a statement it had downed one of the Israeli Air Force jets that violated its airspace, while the Israel Defense Forces (IDF) denied these claims to Sputnik.
In April 2016, Netanyahu admitted for the first time that Israel had attacked dozens of convoys transporting weapons in Syria destined for Hezbollah, which fought a 2006 war with Israel and is now battling alongside the Damascus regime.
Jaafari made his remarks a few days after Israel struck targets in Syria in an attempt to prevent advanced weaponry from reaching the Lebanese terrorist group Hezbollah.
Russian Federation summoned the Israeli ambassador to demand an explanation for Israel's air raids in Syria last week, Moscow has confirmed, as an Israeli drone was blamed for the targeted killing of a senior pro-Assad fighter in a second reported incident.
Though the Israeli military has denied any of its fighter jets were shot down, it did say Friday that it had intercepted several anti-aircraft missiles.
This is largely in keeping with Israel's own narrative on the Syrian Civil War, despite the pretense of neutrality.
"The next time the Syrians use their air defense systems against our planes we will destroy them without the slightest hesitation", Liberman said.
"Each time we discover arms transfers from Syria to Lebanon we will act to stop them".
Syria President Bashar al-Assad received on Monday a Russian-European joint parliamentary delegation headed by Russian State Duma Deputy Chairman Vladimir Vasilyev. "We will not agree to change the rules", Katz said.
Putin is unlikely to be persuaded by Israel's entreaties to rein in one of his allies, said Eyal Zisser, a professor of political science at Tel Aviv University.