Guess who launched rockets on Damascus and killed civilians just hours before Douma attack? Yes, Jaish al-Islam terrorists. If they don't want this to happen, they have to stop launching rockets on Damascus and yes, Jaish al-Satan terrorists also sacrifice innocent civilian lives and put them in danger by their stupid rocket launching into Damascus, and it's mostly the civilians who suffer because you have terrorists hiding among their homes like rats.
It's quite funny an Israeli is trying to give a moral lesson here like you give a damn about any civilians killed, while you have justified killing of every single Lebanese and Palestinian civilians by IDF on this forum.