Based upon my observations of Korea, here is a politically incorrect guide to Northeast Asia:
Japan = America
South Korea = Canada
North Korea = Cuba (specifically, Gitmo)
China = Mexico
At the end of the 19th century and beginning of the 20th century, Imperial Japan occupied both the Korean peninsula and parts of China.
And while the Japanese were arguably more repressive and violent, the parallel with hawkish American foreign policies and conquest is more or less a carbon copy due to the fact that the US military has also invaded and temporarily occupied its neighbors.
- attacking Canada (and looting Toronto in the War of 1812)
- invading Mexico (and occupying Mexico City)
- assaulting Cuba (Theodore Roosevelt and the Rough Riders marauding the countryside)
- permanently occupying Puerto Rico
Incidentally, the US military continues to occupy parts of the Japanese empire, with permanent bases in South Korea and even Japan itself (lest we forget about Vietnam).