see also Human rights in Colombia
Trade unions in Colombia were until around 1990 among the strongest in Latin America. However the 1980s expansion of paramilitarism in Colombia saw trade union leaders and members increasingly targeted for assassination, and as a result Colombia has been the most dangerous country in the world for trade unionists for several decades. Between 1986 and 2010 over 2800 were killed according to one source, and over 4000 according to others. Most assassinations were carried out by paramilitaries or the Colombian military; some were carried out by the guerrillas. In 2009 only around 4% of workers in Colombia were unionised.
Until around 1990 Colombian trade unions were among the strongest in Latin America. However the 1980s expansion of paramilitarism in Colombia saw trade union leaders and members increasingly targeted for assassination, and as a result Colombia has been the most dangerous country in the world for trade unionists for several decades. Between 2000 and 2010 Colombia accounted for 63.12% of trade unionists murdered globally. According to the International Trade Union Confederation (ITUC) there were 2832 murders of trade unionists between 1 January 1986 and 30 April 2010, meaning that "on average, men and women trade unionists in Colombia have been killed at the rate of one every three days over the last 23 years." Other sources give figures of around 4000 trade union members killed from the mid-1980s to 2008.
According to a 2007 Amnesty International report, in 2005 "around 49 percent of human rights abuses against trade unionists were committed by paramilitaries and some 43 percent directly by the security forces." The Colombian parapolitics scandal revealed widespread links between the government and the paramilitaries. The ITUC in 2010 concluded that "the historical and structural violence against the Colombian trade union movement remains firmly in place, manifesting itself in the form of systematic human and trade union rights violations." From 1986 to 2009, Antioquia Department saw the highest number of murders (46% of the total), while the agricultural workers' union Sintrainagro was the most targeted union (at 844, 31% of the total).