Explain the difference between the first labor unions and the American Federation of Labor.

they wanted the u.s. to fight on the side of the central powers.

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.

the anwser is a) to prevent military conflict

newly independent countries of the former ussr