20 mm cannon fire from a U.S. Navy Duglas A-4E <i>Skyhawk</i> from Attack Squadron 55 (VA-55) "Warhorses" splashes in a North Vietnamese river during strikes on barges on 20 July 1966. VA-55 was assigned to Attack Carrier Air Wing 14 (CVW-14) aboard the aircraft carrier USS <i>Ranger</i> (CVA-61) for a deployment to Vietnam from 10 December 1965 to 25 August 1966.
U.S. Navy
Official U.S. Navy photo <a rel="nofollow" class="external text" href="https://www.history.navy.mil/our-collections/photography/numerical-list-of-images/nhhc-series/nh-series/Other/K-31604.html">K-31604</a> from the U.S. Navy <a rel="nofollow" class="external text" href="http://www.history.navy.mil">Naval History and Heritage Command</a>