Hardly Two Mutually Exclusive Groups.

The Kosovo Liberation Army (KLA) and Al Qaeda.

https://www.bbc.co.uk/news/entertainment-arts-55213784

But then I'm not the one who needs to explain the events of 2000.

Before and beyond.

Also.

How depressing is it?

When it feels like nostalgia. Taking about when Al Qaeda was the most dangerous group out there.

https://en.wikipedia.org/wiki/Mallrats