During the 19th century, “The Star-Spangled Banner” became one of the nation's best-loved patriotic songs. It gained special significance during the Civil War, a time when many Americans turned to music to express their feelings for the flag and the ideals and values it represented.
Well, during this period of time, manufacturing jobs started increasing because of the war! Men started leaving their lives in the United States and started storming out to war, and this led to women taking over these jobs. This is why we see the “Rosie the Riveter” posters during this period of time. Just remember, we don’t declare war up until December 8th 1941, when Pearl Harbor was attacked and President Roosevelt signed the Declaration of War.
Answer:
we trade to get better material. we trade for food and merchandise.