Accidentally walking into a border

Samantha sported a white sundress with her flowery hat and sandals as she walked down the pebbled Adriatic coast. She had visited Croatia, and knew that it had a hugging coastline landlocking Bosnia and Herzewhatever, but didn't realize that there was just a little piece of Bosnian territory separating two pieces of Croatian territory.

As she walked, two armed guards approached her.

"Err, miss, do you have a passport on you?"

"This is all Croatian territory," Samantha insisted. Hailing from an upper-middle class family in suburban Chicago, she had a working knowledge of geography but not so much about the intricacies of the Balkans her daddy booked a trip for her in the summer after she graduated territory.

"No miss, you are entering Bosnia and Herzegovina, I'm going to need to see your documentation."

"Well, I don't have it," Samantha demurred.