Quite simply, the history of any country is tied inextricably to the geography of that country. Would England have built the great and puissant navy that it did if it were the size of the United States? Would England have colonized as it did if it had had room for its population on the island country that is smaller than the state of Illinois? It is, indeed, dubious.
The countries which expanded their empires were all countries that had easy access to seas. Russia, on the other hand, had only the Baltic Sea as its outlet; at one time Russia sold the rights to this sea to Sweden, so it became landbound. As such, Russia remained in the Middle Ages until Peter the Great came to power and made great efforts to get the Russian people to progress.
On another point, the frontiers of a country have certainly influenced their histories, as well. Belgium, that borders on France and the Netherlands and Germany, has been under the powers of all three countries. Thus its culture and history has, undoubtedly, been influenced by its geography.
Those countries that have been part of the colonization of Europe are also affected by geography as their borders have been altered, depending upon the powers in control. As mentioned in a previous post, the controversies over Israel's and Palestine's borders are results of interference by world powers (geopolitics). In other countries of the Middle East such as Kuwait and Iraq, wars have occurred as a direct result of changes in geography.