Denmark, Sweden
The North sea to the west and the Baltic to the east
Baltic sea : Finland, Denmark, Sweden, Russia, Poland, Estonia, Latvia, and Lituania
Denmark because it's east border touches the Baltic Sea while the west border touches the North Sea, which is unlike Germany. As seen in this link for map photo...
Denmark, Sweden, Finland, Germany, Poland, Lithuania, Latvia and Estonia all border the Baltic Sea..
Kattegat is the sea northeast of Denmark and southwest of Sweden; the Baltic Sea runs along Sweden's eastern border and touches southern Denmark.
Sweden, Finland, Estonia, Latvia, Lithuania, Poland, Denmark
Sweden,Denmark,Russia
Sweden, Finland, Estonia, Latvia, Lithuania, Poland, Denmark
The North Sea. To the east is the Baltic Sea.
The Baltic Sea is entirely surrounded by the countries of northern Europe: Sweden, Finland, Estonia, Latvia, Lithuania, Poland, Germany, and Denmark (and the Russian exclave of Kaliningrad).
The Baltic Sea.