Colombia's Interior Minister Fabio Valencia Cossio (L) and Defense Minister Gabriel Silva (R) sign a military agreement accompanied by U.S. ambassador to Colombia William Brownfield (2nd L) and Foreign Minister Jaime Bermudez at San Carlos palace in Bogota October 30, 2009. Colombia and the United States signed a pact on Friday increasing U.S. access to Colombian military bases, the Colombian government said, deepening its standing as Washington's main ally in the region. REUTERS/Marina Maldonado-Foreign Minister press office/Handout (COLOMBIA POLITICS MILITARY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS