Industrial Workers of the World philosophy and tactics
The Industrial Workers of the World (IWW) is a union of wage workers which was formed in Chicago in 1905 by militant unionists and their supporters due to anger over the conservatism, philosophy, and craft-based structure of the American Federation of Labor (AFL). Throughout the early part of the 20th century, the philosophy and tactics of the IWW, also known as Wobblyism, were frequently in direct conflict with those of the AFL (forerunner of the AFL–CIO) concerning the best ways to organize workers, and how to best improve the society in which they toiled.
Source: Wikipedia — Industrial Workers of the World philosophy and tactics (CC BY-SA 4.0)