In December 2002 the Venezuelan general strike of 2002-2003 saw many of PDVSA's managers and employees (including the CTV trade union federation) lock out workers to pressure Venezuelan president Hugo Chávez to call early elections, and virtually stop oil production for two months. Nearly 19,000 employees, most of them seasoned professionals, were summarily dismissed, and production resumed with employees loyal to the elected government. The International Labour Organization (ILO) called on the Venezuelan government to launch "an independent investigation into allegations of detention and torture", surrounding this strike. The company has since formed its own militia, which all employees join on a voluntary basis, to ward off a potential "coup" by the government. It considers itself virtually indistinguishable from the state, its social programs more or less running the country's "socialist revolution".