Colombia's Interior minister Fabio Valencia Cossio (L) and U.S. Ambassador to Colombia William Brownfield (2nd L) shakes hands after signing a military agreement while accompanied by Foreign minister Jaime Bermudez (3rd L) and Defense minister Gabriel Silva 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