Realpolitik is a word little understood by most people. Most people familiar with the term tend to confuse it with Realism, an entirely different political philosophy. In fact, many Realpolitikers are also Realists, but there have also been several Liberalist Realpolitikers, though the idealist bent common in the Liberal view of international politics does not mesh well with the hard-bitten nature of Realpolitik. Therefore, this page will begin with a few definitions.
The principal link between Realpolitik and Realism is the belief that the nature of international affairs renders the pursuit of a moralistic foreign policy impractical at best and therefore power is the only legitimate pursuit of states. However, there is an enormous variation in how Realpolitikers view the importance of non-state actors.
It should be noted that Realpolitik is, in its own way, a "moral" or "principled" foreign policy. The goal of any foreign policy is, and should be, the defense of the interests of the state and its people. The whole of the purpose of a state is to protect and promote the interests of the members of that state. Given that Realpolitikers and Realists believe that to pursue a moralistic foreign policy is ultimately fruitless and will result in the squandering of national power, thus resulting in a decrease in ability to protect their own interests, Realpolitik is a "principled" foreign policy.
Take an online survey that I created.