Yeah, USSR's help was sought out by Afghanistan. How does it concern US? As a sovereign republic, it's Afghanistan's right to self govern seeking help from whoever she pleases. It's none of US' business.

As for history and barbarians. In the last 300 years, US have eclipsed whatever injustices others have done in thousands of years. If we include the whole of western hemisphere, it's not even comparable. There is no other civilization that matches the horrific evils that the "enlightened western civilization" did even remotely. You lot wiped off entire natives from multiple continents. Did mass murder in other continents. Followed it up with slavery. I could go on, but even chengiz khan looks like an emo kid if you look at the evil and barbarity of western history.