The western boundary of Romania is with Hungary.
The Western most city in Romania is Deta.
This is the boundary with Ukraine: mountains and the river Tisa.
Austria, Greece, Albania haven't a boundary with Romania.
This boundary is mainly Danube; and a in the South of Dobrogea a terrestrial border.
the
This is the river Danube.
Hungary and Serbia form the western border of Romania.
the
Ural mountain marks the western boundary of asia
Romania was forced by the Western European countries.
The Mississippi River forms the western boundary of the State of Illinois.