The President of the United States of America takes pleasure in presenting the Navy Cross to Private First Class Robert J. Jamison (MCSN: 320034), United States Marine Corps, for extraordinary heroism and devotion to duty while serving as an Automatic Rifleman of Company A, First Battalion, Second Marines, SECOND Marine Division, during action against enemy Japanese forces on Saipan, Mariana Islands, 9 July 1944. On outpost duty alone during an enemy night counterattack, Private First Class Jamison defended a rock crevice which led into his company lines and, by annihilating twenty-five of the Japanese, the nearest falling within ten yards of his position, single-handedly repulsed a hostile advance. His courage under fire, gallant fighting spirit and devotion to duty reflect the highest credit upon Private First Class Jamison and the United States Naval Service.