This. Isn't Croatia in a civil war? And if it's not what difference does it make? It's a war torn country. If your seriously going to go through with this, get a gun...or an rpg.

Croatian War of Independence ended in 1995. Talk about stale news

It's as safe as any other country now, and really beautiful with its amazing Adriatic coast and delightfuly warm climate.
Also, it's definitely not a "Third World" country, Third World being a term used during the Cold War to describe countries that didn't align themselves with either NATO or the Soviet Union (Yugoslavia was a Socialist Republic, therefore a Second World country).
Even with today's popular meaning of the term, that is "poor, undeveloped countries", Croatia obviously doesn't fit in - in fact, it's joining the EU next year.
You really need to read up on history.
If you go to Croatia you should visit the national park with the lakes, I don't remember its name right now but it's probably one of the most breathtaking places I've ever been to. Croatia as a whole is an extremely beautiful country.
I think you mean Plitvice Lakes. I haven't been there, but I heard it's really worth a visit. I've only seen Paklenica National Park because my cousin is a climber and Paklenica is a well-known climbing center.
Anyway, I don't think the OP will have a chance to visit any of these places as he only has 8 days to catch his flight.