The answer I have confidence is answer 3. After the wars the Berlin wall and the 34th parallel South were used as forms of barriers of guarded protection against the "enemy force", yet during World War 2, Germany united and managed to dominate Europe and many other countries, meanwhile South and North Korea used to be united until August 15, 1945 when South and North Korea divided based on their form of Government, North Korea being communist while South Korea staying Democratic. (Sources: Wikipedia, Metmuseum)
