U.S. says will 'take firm measures' against Syria violations near Israel border
Since last year, a "de-escalation" deal brokered by Russia, the United States and Jordan has contained fighting in the southwest.
Israeli soldiers stand atop tanks in the Israeli Golan Heights, close to Israel's frontier with Syria November 22, 2017(photo credit: REUTERS/AMMAR AWAD)ByREUTERSUpdated: