The answer is the Industrial Workers of the World (IWW).
Their members are usually labelled as "Wobblies". This is an
international labor union that was started in 1905 in Chicago, Illinois in the
United States of America. This was headed by William D. "Big Bill"
Haywood; the IWW was successfully destroyed during WWI when most of its leaders
were imprisoned for conspiracy because of their militant disapproval to the
war.
