What is the purpose of the NOBEL PEACE PRIZE?

Obama received it on October 9, 2009.

Why did he get it and what did he do?



[link to www.nobelprize.org]

The Nobel Peace Prize for 2009

The Norwegian Nobel Committee has decided that the Nobel Peace Prize for 2009 is to be awarded to President Barack Obama for his extraordinary efforts to strengthen international diplomacy and cooperation between peoples. The Committee has attached special importance to Obama's vision of and work for a world without nuclear weapons.



Nobel Peace Prize - Wikipedia:
[link to en.wikipedia.org]

"The Nobel Peace Prize (Norwegian and Swedish: Nobels fredspris) is one of the five Nobel Prizes created by the Swedish industrialist, inventor, and armaments manufacturer Alfred Nobel, along with the prizes in Chemistry, Physics, Physiology or Medicine, and Literature. Since 1901, it has been awarded annually (with some exceptions) to those who have "done the most or the best work for fraternity between nations, for the abolition or reduction of standing armies and for the holding and promotion of peace congresses."[1]



Peace Congress:
[link to en.wikipedia.org]

A peace congress, in international relations, has at times been defined in a way that would distinguish it from a peace conference (usually defined as a diplomatic meeting to decide on a peace treaty), as an ambitious forum to carry out dispute resolution in international affairs, and prevent wars.