ocr: Colombia is a presidential democracy. Presidents may not serve two consecutive terms. Main Political Issues Guerrillas and drug cartels Guerrilla activity is a major problem in Colombia, causing instability which makes many regions ungovernable. In 1991,the Gaviria administration persuaded two of Colombia's four main guerrilla groups to accept an amnesty. The Armed Revolutionary Force of Colombia (FARC) - communist guerrillas who turned down the plan - are now the main problem. Gaviria also declared war on the drug cartels of Medellin and Cali. In 1991,Pablo Escobar, leader of the Medellin car ...
