President Eisenhower exercised his federal authority in an effort to desegregate schools after the Brown vs. Board of Education ruling. This famous Supreme Court case stated that the idea of "separate but equal" is inherently unequal. Despite the ruling, several different southern states refused to follow the new ruling. This included the state of Arkansas.
The governor of Arkansas used the Arkansas National Guard to stop nine black students from attending Central High School after the Brown vs. Board ruling. Eisenhower than used his presidential authority to send in the 101st Airborne Division of the US military to ensure that these nine students were able to attend Central High School.
Answer:
1- The addition of Texas added to the happening to the Mexican-American War
2- The contention began, to a limited extent, over a contradiction about which waterway was Mexico's actual northern fringe: the Nueces or the Rio Grande
Explanation:
The fundamental driver of the war was the affirmation of Texas into the United States of America. Since Mexico didn't perceive Texas' freedom after their effective resistance to the Mexican government it was viewed as an intrusion into Mexican domain once Texas acknowledged the greeting into the United States.
The Indian Removal Act was signed into law by President Andrew Jackson on May 28, 1830, authorizing the president to grant unsettled lands west of the Mississippi in exchange for Indian lands within existing state borders. A few tribes went peacefully, but many resisted the relocation policy.