Ijust need the answer to 13 plz and

Why did some states believe they had the power to overturn federal laws?

During the eisenhower administration, the u.s. began to take an active military role supporting the government of o o a. south africa o b. burma (myanmar) o oc. finland od. south vietnam

What were three advantages the north had in the civil war? it was fighting most battles on home ground. it had a greater number of soldiers. it had more highly skilled military leaders. it had a stronger navy. it had a better network of railroads. pick three .