On 4 September 1957,the first day of Central High School in Little Rock,the governor of Arkansas,Orval Faubus,called in the National Guard to block the African American students'entry into the high school.The Little Rock School Integration Crisis broke out and attracted world-wide attention.It revealed the seriousness of the racial discrimination in the U.S.,which was not only widely condemned by the socialist countries and aroused the deep concern of the U.S.allies,but also seriously damaged the national image and reputation of the U.S.In order to preserve reputation and eliminate the negative impact around the world as much as possible,President Dwight Eisenhower ordered the troops to intervene the'Little Rock Crisis'.Afterwards,the U.S.government explained and propagandised in the international community,attempting to demonstrate itself as'human rights defender'.As a matter of fact,the'Little Rock Crisis'did not provoke large-scale racial riots,nor did the blacks take any fierce resistance.However,facing the non-insurgent situation,the U.S.government took military action to intervene the state affair,which was relatively a rare action.The highly symbolic political action aimed at enhancing the'public appeal'of the American democracy.In context of the Cold War,the'Little Rock Crisis'promoted the'federalism'of the American politics,then the Southern state governments began to lose their upper hand in racial issues.This change paved the way for civil rights movement and laid the foundation for the termination of the racial segregation.