Under the Constitution, the principle of federalism is the reason that power and responsibility are shared by state and national governments. There are two levels of governance established in this type of system. The powers are equally divided between the two. Examples of countries that are federal are United States, Germany, and Canada.
The Hoovervilles were the shanty houses that was built by the homeless people during The Great Depression to remind President Hoover that they are struggling, starving and totally homeless at this point of their lives. President Hoover was widely blamed for The Great Depression.
The construction of the Panama Canal allowed the US to exert influence around the world and it gave easier access for ships to move between the Atlantic and Pacific. This would make defending new territories easier.
Bonus: It was a huge mistake they made by selling the canal to Panama though. Not only did they lose a ton of money (I'm talking about 35 million dollars), they wasted time and lost some advantages that might have brought them success in the future.
Yes this is true and if you are wondering what war, it was the Pequot war.
We need to control the inflow of people to the countries especially when the economy is tanking. The influx of illegal trespassers had eaten up millions of jobs that would otherwise go to legal citizens who have come in good faith through proper channels. You wouldn't want people making decisions for your country (voting) who aren't apart of your country. That would basically be like asking a stranger where you should eat every time you were hungry. We need rules to regulate what goes on in our country so we can keep everything in order and under control.