There is much outrage over the images of dead and injured children. If you feel compelled to do something, here’s a good source of information on how: Shocked by the image of the Syrian boy in the rubble? Here’s how to help | World news | The Guardian
If you are wondering why it is so terrible, especially around the city of Aleppo, then you can read this: Lina Khatib on the Battle of Aleppo – Council on Foreign Relations Lina Khatib on the Battle of Aleppo – Council on Foreign Relations.
Khatib argue that because Aleppo is seen as crucial for success by both regime and opposition forces, much terrible fighting is occurring there. To add to that, partners and proxies are joining the fight, turning it into something that looks like a modern day Stalingrad. At this time, there does not seem to be many (or any) good diplomatic or military solutions. Hence the terribleness that is happening.