http://iswresearch.blogspot.com/2018/07/russia-abandons-southwest-syria-deal-in.html
Russia is directly supporting an offensive by Syrian President Bashar al-Assad in violation of the de-escalation zone in Southern Syria. Pro-Assad regime forces backed by Russia and Iran launched a major offensive against opposition-held terrain in Southern Syria on June 19. The offensive involves elite pro-regime units such as the Syrian Arab Army (SAA) Fourth Armored Division, Republican Guard, and Tiger Forces[1] as well as alleged participation by the Iranian Islamic Revolutionary Guard Corps (IRGC)[2] and Iraqi Shia militias. Pro-regime forces seized – or forced the surrender of – most of opposition-held Eastern Dera’a Province by July 2. Russia supported these advances with a campaign of intense airstrikes targeting both military and civilian infrastructure across Eastern Dera’a Province starting on June 24. The Russian Foreign Ministry nonetheless claimed that Russia remains committed to the de-escalation zone in Southern Syria brokered by the U.S., Russia, and Jordan in July 2017. Russian Foreign Ministry Spokesperson Maria Zakharova stressed that the pro-regime offensive aims to fulfill the alleged obligation of the deal to “eradicate terrorists”[3] in Southern Syria. Zakharova noted that the Russian Armed Forces are present on the ground to facilitate negotiations between the regime and armed opposition groups in Southern Syria.