many socialists joined this union.
answer knights of labor
american federation of labor
industrial workers of the world
collective guild

hello,

answer: a federal government has final authority on interstate/inter provincial  and international affairs, a confederation is one where the central/national government or authority is governing body what does not have final say over the same matters. hopefully this and i will try again if you don't like this answer : )

best of luck!

haile selassie i was the emperor of ethiopia from 1930-1974