U.S. Ambassador to Guatemala John Hamilton introduces Secretary Rumsfeld. U.S. Ambassador to Guatemala John Hamilton (2nd from right) introduces Secretary of Defense Donald H. Rumsfeld (right) to Guatemalan Minister of Defense Brig. Gen. Carlos Humberto Aldana Villanueva at the Guatemala La Aurora International Airport in Guatemala City on March 23, 2005. Rumsfeld is traveling to South and Central America to meet with key government officials and his defense counterparts to strengthen bilateral ties. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 997419-J-TBR64-973.jpg Photo Gallery