The President of the United States of America takes pleasure in presenting the Silver Star to Captain [then Commander] Thomas Michael Dykers, United States Navy, for conspicuous gallantry and intrepidity as Commanding Officer of the U.S.S. JACK (SS-259), on the FOURTH War Patrol of that submarine in enemy Japanese-controlled waters, during the period 6 April to 10 May 1944. Skillfully maneuvering his ship after it had been bombed by a hostile patrol plane on 25 April, Captain Dykers launched three bold attacks during the night against a heavily-escorted enemy convoy to damage severely five Japanese freighters, probably sinking four of them. Patrolling the eastern approaches to Balintang Channel, he gallantly fought his ship to destroy a Japanese trawler by gunfire, capturing two passengers and, the next day, destroyed another trawler. By his courage and initiative in searching out the enemy, Captain Dykers contributed essentially to the success of our forces, and his zealous devotion to the completion of each perilous mission was in keeping with the highest traditions of the United States Naval Service.