Only some provinces of Serbia and Romania.
Serbia was not allied with Germany; Italy and Romania, yes.
Austria, Slovenia, Slovakia, Romania, Serbia, Croatia, Ukraine
Hungary and Serbia form the western border of Romania.
Yes it is.
Around Romania are: Bulgaria, Serbia, Hungary, Ukraine, Moldova.
Romania has boundaries with Ukraine, Moldova, Hungary, Serbia and Bulgaria.
Romania has borders with Hungary, Serbia, Bulgaria, Moldova and Ukraine.
Moldova: Romania, Ukraine Romania: Hungary, Serbia, Bulgaria, Moldova, Ukraine
Romania has boundaries with Bulgaria, Moldova, Ukraine, Hungary and Serbia.
Both Serbia and Ukraine border Hungary and Romania.
Romania has boundaries with Serbia, Hungary, Ukraine, Moldova and Bulgaria.