The full scene looks staged, but the full video is not played on western channels. This is a media war, a PR war, says Patrick Henningsen. Many of the people in East Aleppo are being kept there as human shields. Most have fled to West Aleppo which is government held.
The staged boy in ambulance is CNN etc giving support to terrorist organisations. These are armed, trained and directed by Western nations such as Britain to overthrow the legitimate Syrian government. If ALeppo falls to the terrorists then the civilian losses will escalate dramatically. The battle for Aleppo is a crucial one for the world, as well as the people who live there. The British and US sponsors of ISIS/Islamicist terrorism must be defeated.