Uh, trading? Immigrants? WAR?
There are a lot of reasons why america should concern itself with wath China is doing, like...
The Recycling Shortage (thingy) - China put stricter guidelines for other country's waste that they deposit to China.
Immigrants - Wonder why (maybe all) major cities has a China Town? Yeah, immigrants.
More people = Economy goes up
More tourists = Cash
War - Maybe not today, but in the past, people were concerned if China was gonna start a World War.
The Spanish-American War was fought in 1898 and was an imperial conflict. The major combatants were the United States and Spain. The war was fought on two fronts: Cuba and the Philippines. The war was instigated by Cuba and the Philippines in an effort to gain their independence from Spain.
The treaty of paris of 1763 gave control of Canada to the British colonies.