PANAMAX Participants Army Gen. Laura Richardson, commander of U.S. Southern Command, addresses participants of PANAMAX 2022 on Joint Base San Antonio-Fort Sam Houston, August 10, 2022. PANAMAX is a U.S. Southern Command-sponsored multinational command post exercise aimed at reinforcing and enhancing the long-term security of the Panama Canal and the Western Hemisphere. SHARE: Download: Full Size (3.37 MB) Credit: Army Spc. Joshua Taeckens VIRIN: 220810-A-JF826-1334.JPG Photo Gallery