This is Republic of Moldova.
Ukraine.
The only country bordering Moldova (apart form Ukraine) is Romania. However, no country would satisfy the directions of your question.
Belarus.
Ukraine is a country that is located in Eastern Europe that shares borders with Russia, Poland and Hungary. Yes, Ukraine is a Balkan Country.
Ukraine is a country in eastern Europe.
No. Nigeria is a country in Africa. Ukraine is a country in Europe.
Crimea doesn't include any country, it is a part of Ukraine.
Ukraine
Hungary, Slovakia and Poland are to the west of Ukraine.
No, Ukraine has no connection with international terrorism.
Ukraine is larger.