"between the two countries"
A prepositional phrase needs to contain a preposition, in this case it would be "between". As well it needs to modify the sentence and it should mention the object of the sentence. So "between the two countries" is correct.
This all sounds like something they want YOU to decide.
Answer:
Anne: is a lively, curious girl of thirteen at the beginning of the play. She remains optimistic throughout the months they are in hiding and always makes the best of the situation she is in.
Mr. van Daan: is intelligent, opinionated, pragmatic, and somewhat egotistical. He is temperamental, speaks his mind openly, and is not afraid to cause friction, especially with his wife, with whom he fights frequently and openly.
Mr. Dussel particularly difficult to deal with because he shares a room with her, and she suffers the brunt of his odd personal hygiene habits, pedantic lectures, and controlling tendencies.
Answer:
She fell to sleep listening out for the rumble in the garbage bins that was a sure sign bears were visiting?