The Syrian government has always refused allegations that it used chemical weapons, while now there is proof that the American and British governments ordered terrorists in Eastern Ghouta to use chemical weapons and then accuse the Syrian government of committing those acts. The orders were given to the jihadists of Tahrir al-Sam, Fajlak al-Rahman and Ahrar al-Sam.
Recurring pro-Kremlin disinformation about chemical weapons in Syria.euvsdisinfo.eu/smear-campaign-against-civilian-rescuers-in-syria-continues/,
No evidence supporting the claims. In November 2017, a UN Security Council-mandated investigation concluded that both ISIL and the Syrian government had been responsible for chemical attacks in Syria news.un.org/en/story/2017/11/570192-both-isil-and-syrian-government-responsible-use-chemical-weapons-un-security, .
Russia repeatedly cast veto of United Nations Security Council action on Syria. www.reuters.com/article/us-mideast-crisis-syria-chemicalweapons/russia-casts-10th-u-n-veto-on-syria-action-blocking-inquiry-renewal-idUSKBN1DG31I,