From the North, downwards: North of Russia: the Sea of Barentz, between Greenland and Sptizberg (NW of Norway): Greenland Sea, West of Norway, towards Iceland: the Sea of Norway, between Norway, Great Britain, Denmark: the North Sea, between France and Great Britain: the English Channel, West of Iceland, Ireland, Great Britain, France, Spain, Portugal: the Atlantic ocean, SE of Spain, South of France, Italy... : the Mediterranean Sea (http://commons.wikimedia.org/wiki/File:Carte_de_la_mer_Méditerranée.png for futher detail) between Turkey and Europe: the Black Sea.
The North Sea is between Britain and Europe.
The English Channel is the body of water which is located between Great Britain and Europe and is a part of the Atlantic Ocean,
The Irish Sea
The English Channel
Because of the Gulf Stream, which carries warm water from the Caribbean to the North Atlantic.
There is no river dividing Great Britain form France. The water between them is called the English Channel and it is a part of the Ocean.
The main geographic defence was the body of water between mainland Europe and Great Britain. This body of water was controlled by the greatest navy on the planet.
English channel
Not sure what you mean exactly, but Britain is situated between the North Sea and the Atlantic Ocean.
The North Sea and the English Channel.
The English Channel separates the two countries.