Five decades ago, South Korea had a per-capita GDP of $158, making it one the world’s poorest countries. That was before the United States, in the aftermath of the Korean War, pumped $60 billion into South Korea over a 30-year period and secured the nation’s physical security with a U.S. military garrison. Then there were trade and other forms of economic cooperation. Today, South Korea has a per-capita GDP of more than $27,000, as it has progressed into a post-industrial economy excelling at consumer electronics, biotechnology and robotics, among other lines of business. It has also moved from dictatorship to stable democracy.