How did Christian trade unions expand from Europe into Latin America?

The expansion of Christian trade unions from Europe into Latin America was driven by the efforts of the International Federation of Christian Trade Unions (IFCTU), which later became the World Confederation of Labour (WCL).12

The IFCTU aimed to extend its influence beyond Europe to the Western Hemisphere, leading to the establishment of the Latin American Central of Workers (CLAT) in 1954, initially known as the Latin American Federation of Christian Trade Unionists (CLASC). CLASC organized unions with a Christian orientation and Christian Democratic groups within other unions. Its growth accelerated in the 1960s, partly in opposition to the U.S.-dominated Interamerican Regional Organization of Workers. While CLASC presented itself as a representative Latin American body, a significant portion of its funding originated from Roman Catholic union groups in Europe.2