All of the aforementioned were designed to help the Allied powers during World War II. Even though the US wanted to stay "neutral" when World War II broke out, they did want to benefit by maintaining economic relationships with these countries.
The Lend-Lease Act is a perfect example. This allowed the US government to lend weapons and other materials to nations like France, Great Britain, and China during World War II. If the goods weapons/materials were destroyed, it was on the country using them to replace it.
The Cash and Carry policy was another example of the US government helping the Allied powers. This policy stated that countries may buy materials from the US, as long as they pay in cash and provide transportation for the materials at their own risk.
Both of these show that even though the US was not technically in the war yet, they heavily favored the Allied powers.
Richard Pryor being the funniest comedian of all time is an opinion
The southern economy was primarily agrarian (farms) while the north was heavily industrialized.
I am not so sure what you mean by "what kinds of unions were formed", but if you're talking about the Civil War then I think the unions were Confederate and Union. The Confederates wanted to run the country with slavery while the Union fought against slavery. Do not quote me on that though.
Answer:
Three causes of the War of 1812 were maritime problems, Manifest Destiny, and national pride. One of the three main causes of the War of 1812 was maritime problems between the United States and Great Britain. The seeds of these maritime problems were planted nine years before the War of 1812 even began.
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