 Students will explore three periods of international peacekeeping. The first period, during the Cold War, it was a difficult period for the UN. A world divided in two blocks, the UN had to keep the peace in a post-complex situation. The second period, during the 80s and 1990s, the UN had great expectations. The world was full of optimism regarding the possibility that the UN could keep the peace and spread democracy worldwide. Today, we are in the third period, which is a period of crisis, a period of disillusionment and a period with great skepticism regarding the possibility to keep the peace elsewhere. What is the source of this crisis? Why is it so difficult to achieve peace in a post-war zone? Is there hope? Is there a future to international peacekeeping?