For me the only country that wasn't covered by my green card was Kosovo. I entered from Albania, insurance was 15€, cash only. I didn't carry enough €'s so I paid in a mix of Albanian Lek and €.
Borders themselves were never a problem, just the usual paper checks and I was on my way.
| KTM 690 SMC Adv | ( Honda RD04 Africa Twin ) |
- RR around Europe on the AT