“We are constantly watching events in Syria. We are determined to defend the vital interests of Israel and to maintain the achievements of war,” Israeli Prime Minister Benjamin Netanyahu has said while visiting new military recruits at a base in central Israel, Al Jazeera reports.

Fighters swept into the Syrian city of Aleppo, east of Idlib province, on Friday night, forcing the army to redeploy in the biggest challenge to President Bashar al-Assad in years.