One of the very foundations of political science is the principle that geography determines destiny. In the same way that the British Isles determined the naval culture, and the frontier affected the American culture, Russia too, can be defined by its geographic characteristics. The most obvious element of Russia's geography is its enormous size. However, the truth is that Russia's size is both an advantage as well as a liability. The very core of the Russian Federation, the Moscow region, is simply indefensible. There are no mountainous ranges; no rivers or oceans, there are no swamps or deserts. Only the forests of Moscow and the inhospitable climate can be defined as geographic obstacles. The only thing the Russians can do in event of an invasion is to drag out the war and bleed the enemy out. It is for this reason that Russia's history is largely about surviving invasion after invasion.