The President of the United States of America takes pleasure in presenting the Navy Cross to Lieutenant Colonel James M. Masters (MCSN: 0-4874), United States Marine Corps, for extraordinary heroism as Executive Officer of the Seventh Marines, FIRST Marine Division, in action against enemy Japanese forces during the assault on Dakeshi Ridge, Okinawa, Ryukyu Islands, from 10 to 12 May 1945. On 10 May, when the advance of the Regiment was checked by a strong hostile force, Lieutenant Colonel Masters unhesitatingly went forward of the front lines on reconnaissance and obtained information concerning the Japanese and unfamiliar terrain which enabled a successful attack to be made the following day. On 11 May, he established an advanced observation post in the only possible position on the front lines from which the attack that day could be observed and directed and, despite unusually heavy casualties at the post from intense enemy mortar and small-arms fire, continued to man it and report information vital to the capture of desperately defended Dakeshi Ridge, Moving the observation post forward again on 12 May, he advanced under intense hostile fire to the Ridge before that ground had been completely seized by assault troops and, although the Japanese continued to inflict heavy casualties on his force, persevered in his mission to observe the enemy and terrain, thus securing information which aided materially in the formulation of successful plans for continuing the attack. His inspiring leadership, courage and unremitting devotion to duty throughout were in keeping with the highest traditions of the United States Naval Service.