How did the National Guard help insure domestic tranquility when called to force desegregation in the Arkansas school system in 1957? O By threatening violence against protestors
O Keeping Americans safe from invading countries
O Keeping Americans safe from other Americans

Keeping Americans safe from other Americans

Explanation:

In 1954 the Supreme Court ruled that segregation in public schools was against the Constitution and so the NAACP went ahead to enrol certain black students in previously white only schools.

One of the places they did this was in Little Rock, Arkansas. There was a lot of opposition to the children attending school and the Governor of Arkansas called in the National Guard to prevent the children attending.

President Eisenhower then sent in Federal troops and federalized the Arkansas National Guard and charged them with protecting the black children and ensuring that they attend. The National Guard therefore protected the children and in doing so protected Americans from other Americans.

where is the picture

i believe that the correct answer is a canadian hero.

explanation: he is celebrated as a national hero in canada for successfully thwarting a united states takeover of canada during the war of 1812.