When regime change eventually happens, the new democratic govt of Iran will exclude Russia and China from the contracts. Only such fears will make Russia and China take some action. Of course, they are hoping it won't happen. These two communist-tained countries are living on borrowed time. The elites will eventually be replaced and regime change will also happen in these countries after they do a Syria-like slaughter of their own people.
Israeli troops shoot, injure Palestinian crossing Gaza border fence (Haaretz)