This question already has an answer here:

Does the train from Beograde to Budapest stop at the border or does the passport controller come into the train?

marked as duplicate by JonathanReez Sep 5 '17 at 15:10

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • The title and body of your question are asking two totally different things. – Mike Harris Sep 5 '17 at 14:26
  • Please avoid asking the same question several times. Thank you. – JonathanReez Sep 5 '17 at 15:10