Answer
They were kept from combat roles.
Explanation
During World war 2 which started in the 19th century, African-American units were utilized by the Army to combat the Native Americans during the Wars. The most noted among this group were the Buffalo Soldiers. Many of these men were unofficially allowed to enlist in the Union Army The African-American men registered for the draft, and black women also volunteered in large numbers. While serving in the Army, Army Air Forces, Navy, Marine Corps, and Coast Guard, they experienced discrimination and segregation but met the challenge and persevered.
White employers and the Ku Klux Klan threatened African Americans. Yup, I took US History and learned about this tragic part of the civil rights era. The KKK would beat and threaten them with weapons and set the buses on fire with the protesters inside the buses and block their path so they would burn to death within the bus.
I don’t understand what this is asking but ok 20+57=77
the World Bank puts the food and agriculture sector at 10% of global gross domestic product, which, taking the bank’s 2006 estimate of about $48 trillion, would make the sector worth about $4.8 trillion.