I think the answer is A hope it helped you out.
Answer:
He wouldn't send the troops to Ukraine
One of Truman's greatest achievements as president, which utilized the greatest extent of his executive powers, was the racial desegregation of the armed forces.
They moved around (though the cowboys were herding cattle, whereas the Native Americans were following the buffalo). They cared for the cattle (eg by bog-riding and from line-camps) in a way similar to the way Native American dog-soldiers cared for the buffalo.