Is the iphone 5 from sprint a global phone? Does it have a removable sim card?

I'm currently doing a lot of traveling to Kuwait and a couple co-workers have Verizon sim cards and all they do is take there sim card out and replace it with a Zain one (which is the local cell phone carrier) and use it locally for calls in Kuwait is that even possible with Sprint?

No. The iPhone 5 for Sprint is CDMA only. No SIMs.