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.
The Cold War happened from about 1945 to about 1990. It was not really a war. It was a competition between the United States and the Soviet Union to see who would dominate the world. They each thought that their system of government and economics was best and should dominate the world.