Arkansas Gov. Faubus sends Nat'l Guard to prevent the Little Rock Nine from entering high school 1957

In 1954, the Supreme Court ruled that segregation of schools was unconstitutional, but integration did not come easily. 

In 1957, nine black students attempted to enroll at Little Rock Central High School in Arkansas.  On September 4, 1957, Governor Faubus mobilized the Arkansas National Guard to prevent the students from entering, preventing integration.  To "preserve the peace". 

The nine students were physically and mentally abused by the white students, but they persevered.  President Eisenhower sent the 101st Airborne Division of the US Army, then later, federalized the Arkansas National Guard and ordered them to support the integration and protect the black students.