Answer:
The Potsdam Conference,
Explanation:
Leaders of the winning faction: Stalin, Churchill and Truman met in Potsdam towards the end of World War II to define the new order and a new global agenda.
The meeting turned into the famous photo where the tree man stands together despite their differences in ideology.
The world was to change since, the outline for carrying out the policies in Europea and the rest of the world would cast a "curtain wall".
A bipolar world emerged where communism and the capitalist world would collide.
The European landscape was quickly transformed into a series of blocs and alliances to carry out different visions of what they thought was the best model of politics and economics.
