Pregangliotic neurons of the sympathetic division of the autonomic system originate in the thoracic and lumbar (thoracolumbar) levels of the spinal cord and send axons to sympathetic ganglia, which parallel the spinal cord.
The great confrontation we came to call the Cold War had quite suddenly become the next stage of world history. What began in Iran in 1946 lasted for 45 years, until the dissolution of the Soviet Union in 1991.
When we turn to the more immediate and tangible causes of the cold war, we must begin with World War Two itself. On July 25, 1945, two months after Germany had surrendered, the Big Three -- Winston Churchill, Joseph Stalin and Harry Truman -- met at POTSDAM in order to discuss the fate of Germany.