system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does the US keep arming rebels when years later history shows those same rebels kill us with those weapons?
gpt
>history shows those same rebels kill us with those weapons?

History also shows sometimes they don't.

It's always a tricky process of arming rebel groups.  Sometimes its right, sometimes its wrong. It's also hard to predict the outcomes if they are or are not armed.  The future isn't known, we can try to influence it to our advantage, and certainly the US does try to--just as every country does.