Hook Ladder Look Navy Petty Officer 2nd Class Patrick W. Holmes climbs a hook ladder while boarding the USS Carter Hall during Alligator Dagger 17 in the Gulf of Aden, April 12, 2017. The exercise provides an opportunity to enhance multilateral capabilities in critical mission sets inherent to the Navy and Marine Corps. Navy photo by Petty Officer 1st Class Darren M. Moore SHARE: Download: Full Size (0.82 MB) Credit: Petty Officer 1st Class Darren M. Moore VIRIN: 170412-N-ME988-262C.JPG Photo Gallery