At the outbreak of the Civil War, Lincoln declared that his main goal was the preservation of the Union and not the freedom of slaves. After the firat few terrible years of the war, his views on the goals had changed.
The main reason why the US government rationed goods and many Americans planted ""victory gardens""during World War 2::
<em>C.The United States wanted to keep American troops fighting in Europe and the Pacific well supplied.</em>
The main cause for the great migration, was the desire of African Americans to get away from segregation and the Jim Crowe laws. They also wanted to find better job opportunities as well. They took advantage of the needs of industrial work after World War I up North. They also confronted racial, prejudice, economics, and political challenges that African Americans faced.