Black sea
Hungary and Moldova have boundaries with these both countries.
Ukraine has borders with Romania and Belarus.Ukraine.
Russia and Romania don't share a border. Ukraine borders both countries, the only country to do so. Romania is to the southwest of Russia.
Both Serbia and Ukraine border Hungary and Romania.
The Danube River forms part of the boundary between Bulgaria and Romania.
Both countries joined in 2007.
This conutry is Ukraine.
Culturally Albania is closer to Romania than Bulgaria. With Romania Albania shares the original teutonic layer and 1500 years of Roman empire domination. With Bulgaria it shares some turkic elements present in both countries. Bulgaria is generally slavic, Albania is not.
The Black Sea has an area of about 169,000 square miles and forms in an elliptical depression that forms from east to west. It lies between Russia, Ukraine, Bulgaria, Georgia, Romania and Turkey and is held by both the Pontic and Caucasus Mountains in containment.
Romania and Bulgaria. They both joined in 2007.
Bulgaria wanted to recover some lands in and around Silistra, in the Dobrudja Region. Dobrudja, the place shared between Romania and Bulgaria. Its a very fertile land
Europe and Asia are both continents, not countries. And Bulgaria is a country in the continent of Europe.