How is Otto von Bismark a good example of Realpolitik?

it would be great if you could explain it simply for me. thanks
How is Otto von Bismark a good example of Realpolitik?
Try this one:


Realpolitik


Bismarck was the architect of a policy that came to be known as REALPOLITIK, which means %26quot;practical politics.%26quot; He was determined to strengthen Prussia by any means necessary. Alliances were merely convenient and could be dissolved to exploit an opportunity. Bismarck supported democracy to gain internal support, but had no true interest in liberal reform. He watched international events closely, waiting for the proper moments to advance his agenda.


The Danish king%26#039;s attempts to annex the DUCHIES OF SCHLESWIG AND HOLSTEIN provided an opportunity for Bismarck to act. He enticed Austria to declare war on Denmark to acquire these two territories. Following a brief war, Prussia assumed control of Schleswig while Austria occupied Holstein. Denmark was too weak militarily to stop either larger power. Bismarck never intended to make the joint occupation permanent. He immediately made plans to stab the Austrians in the back.


http://www.beyondbooks.com/eur12/2b.asp





This is also a very good link





http://www.sparknotes.com/history/europe...