It would help if you listed the answer chioces
The most significant contributing factor to the Steel Strike of 1919 in the US was the end of World War I, which left many of those workers who had unionized in federal unions with less opportunities for work then prior and during the war.
WWl
More than 350,000 African Americans served in segregated units during World War I, mostly as support troops. Several units saw action alongside French soldiers fighting against the Germans, and 171 African Americans were awarded the French Legion of Honor.
WWII
Despite a high enlistment rate in the U.S. Army, African Americans were not treated equally. At parades, church services, in transportation and canteens the races were kept separate. A quota of only 48 nurses was set for African-American women, and the women were segregated from white nurses and white soldiers for much of the war. Eventually more black nurses enlisted. They were assigned to care for black soldiers. Black nurses were integrated into everyday life with their white colleagues. The first African-American woman sworn into the Navy Nurse Corps was Phyllis Mae Dailey, a Columbia University student from New York. She was the first of only four African-American women to serve as a Navy nurse during World War II.
<span>No. This clause asserts and establishes the Constitution, the federal laws made in pursuance of the Constitution, and treaties made by the United States with foreign nations as "the Supreme Law of the Land" (using modern capitalization). </span>
