Nov. 21, 2017 Joint Base Charleston C-17 deploys to deliver U.S. Navy's undersea rescue A C-17 Globemaster III from Joint Base Charleston joined six other U.S. Air Force C-17s and three C-5M Super Galaxies deployed to Argentina on Nov. 18 to deliver the U.S. Navy's undersea rescue capabilities to aid in the search for the A.R.A. San Juan, an Argentine navy submarine, which went missing