New York ( CNN ) -- A Colombian man who federal authorities say was a leader of the leftist Revolutionary Armed Forces of Colombia ( FARC ) was convicted in U.S. federal court Thursday of conspiring to import thousands of kilograms of cocaine into the United States , according to prosecutors . Ignacio Leal Garcia , who was extradited from Colombia to the United States in July 2010 , wil be sentenced on November 17 and could get 10 years to life in prison , according to a news release from the U.S. attorney for the Southern District of New York . `` In connection with its request for extradition , the United States has assured the Government of Colombia that it will not seek a life sentence for Leal Garcia , '' the release said . Leal Garcia , 41 , is one of five alleged FARC leaders extradited by the United States on the same federal indictment , and the other four defendants already have been convicted , according to the U.S. attorney 's office . In the indictment and other court papers , prosecutors describe the FARC as being `` a hierarchical organization comprised of twelve to eighteen thousand members '' and as being a military-style organization responsible for production and shipment of more than half of the world 's supply of cocaine and nearly two-thirds of the cocaine imported into the United States . Leal Garcia , who was captured in April 2009 , was leader of a FARC section that controlled all cocaine production and trafficking in a 9,000-square-mile area near Colombia 's border with Venezuela , prosecutors said . `` To exercise this control , Leal Garcia organized regular meetings in the various municipalities ... where he threatened death or exile for anyone who failed to cooperate with the FARC 's control of coca farming , cocaine production and cocaine trafficking in the region , '' the release from U.S. Attorney Preet Bharara said . Leal Garcia supervised production and distribution of `` thousands of tons of cocaine '' intended for the U.S. market , the statement said , with profits from drug sales going to fund the FARC . `` Recognizing that the FARC could not survive without its cocaine revenue , the indicted members of the FARC leadership directed its members to attack and disrupt coca eradication fumigation efforts , '' the news release added . `` FARC leaders also ordered FARC members to kidnap and murder United States citizen in an effort to dissuade the United States from continuing to contribute to coca eradication . '' The FARC has been at war with the Colombian government since the 1960s . While severely weakened in recent years , the leftist guerrilla group has continued to carry out kidnappings and attack security forces in the South American nation . The United States and the European Union consider the FARC a terrorist organization . CNN 's Samantha Stamler contributed to this report .
Ignacio Leal Garcia was extradited to the United States 10 years . He is five of one alleged Revolutionary Armed Forces of Colombia leaders convicted in the U.S . Prosecutors say he oversaw `` thousands of kilograms of cocaine '' intended for the U.S .