system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why did Russia just bomb/airstrike Syria?
gpt
Russia and Assad(Syrian dictator) are old classmates from Middle East elementary.  Assad allowed Russia to hide his slingshot(Navy) in his locker and let Russia borrow his bike so that Russia could get around in the middle east.

Now they're in High School and it turns out Assad is kind of a dick that beats the shit out of a bunch of his classmates(fellow Syrians) These classmates started their own club called ISIS and several other (rebel)clubs to fight back. Russia, not wanting Assad to get his ass kicked and lose access to the sling shot and bicycles, now has to back up his old buddy Assad.

Obama has beef with the ISIS club too, but doesn't want to look like an asshole by helping a guy (Assad) who beats up innocent classmates so Obama refuses to work with both Assad and Russia.