Chilean Minister of National Defense Andres Allamand, left, speaks with Secretary of Defense Leon E. Panetta, U.S. Ambassador to Chile Alex Wolff and members of Panetta's traveling staff prior to a meeting at the Presidential Palace, Santiago, Chile, April 26, 2012. 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.