Secretary of Defense Leon E. Panetta, Colombian Minister of Defense Juan Carlos Pinzon Bueno, and U.S. Ambassador to Colombia Michael McKinley arrive in Tolemaida, Colombia, April 23, 2012, to observe Colombian special forces demonstrate their abilities and skills. Panetta is on a five-day trip to the region to meet with counterparts and military officials in Brazil, Colombia and Chile to discuss an expansion of defense and security cooperation.