The attacks Trump ordered seem to have support from both democrats and republicans in the US. It's also claimed that allies of the US support the action. I was relieved when Ed Miliband led the LP in opposing air strikes/further military involvement and hoped diplomacy would make progress. Since then, we have all watched in horror, many signed petitions, wrote to MP's etc but things continue to get worse.
Russia's support for the Syrian government alongside increased US campaigns seem inevitably to increase the conflict. I may be wrong about that, as others have said, this situation is so complex. The rebels include Daesh, Trump has also said he'll wipe that organisation out. How?