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.
What would you like help with exactly?
One of the main factors leading up to the Civil War was territorial expansion into places like Arizona and Texas, with the question being whether these new states would be free or slave. It was in Arizona's interest to side with the slave states.
Truman offered Marshall Aid to help remake the smashed economies of Europe. He needed financially solid exchanging accomplices who could purchase American merchandise. This guide accompanied strings connected: to be acknowledged for Marshall Aid, nations needed to hold free and reasonable decisions. Truman offered to scrap the British and American "Bizonia" in West Germany keeping in mind the end goal to increase Soviet support.
