Countied to Mexico......................................
D because they were now aware of challenges that may arise like disease when invading
The principle of Yin and Yang is that all things exist as inseparable and contradictory opposites, for example, female-male, dark-light and old-young. The principle, dating from the 3rd century BCE or even earlier, is a fundamental concept in Chinese philosophy and culture in general.
Weapons manufacturers had maneuvered the government to declare war so they can make profits.
I hope that's the answer you were looking for
