How did the idea of nation states and nationalism influence desire for war during world wars?

Bonus question: according to wikipedia, in chinese philosophy yin and yang "describes how seemingly opposite or contrary forces may actually be complementary, interconnected, and interdependent." what are some examples from the story that amy tan may have intentionally incorporated elements of yin and yang philosophy into this story? select 2.

Question 18 multiple choice worth 3 points) (american money lo 4 hc) suppose the federal reserve raises interest rates. which of the following predicts the most likely results? the money supply will decrease, meaning that banks will give fewer loans and prices for goods and services will fall. the money supply will decrease, meaning that more people will buy goods and services and prices will rise, the money supply will increase, meaning that banks will give more loans and more businesses can open and hire workers. the money supply will increase, meaning that prices will rise and businesses will not hire many workers. i will mark the brainliest

When the communist, under mao, took control of china in 1949 they announced total support support for which country and its ideology?