The global rivalry between China and the United States dominates the geopolitics of the 21st century. The world’s two largest economies armed with an impressive array of military capabilities are engaged in a struggle for power in the Asia-Pacific region, and the outcome of that struggle will determine the 21st century’s world order.

Eun Ji Koh was a typical Californian teenager before her immigrant parents surprised Koh and her brother with some startling news. Her father had been offered a far more lucrative job back in Seoul than he could ever expect to be offered in the US. It isn’t uncommon for immigrants to return to their countries of birth for better employment opportunities, but in this case Koh and her brother would be staying behind.