Hudson subsequently led his battalion in attack on enemy positions on Mt. Maga and then attacked enemy fortifications on near Mt. Lasso on July 26. On July 28, Japanese resistance on the island fell apart except some individuals, who denied to surrender. Hudson and his battalion took up in the mopping-up operations and Tinian was declared secured on August 1, 1944. For his service during the capturing of Saipan and Tinian, Hudson was decorated with the Legion of Merit with Combat "V". The 25th Marines were ordered back to Maui, Hawaii, on August 5 and spent next five months with training and preparations for future combat deployment. Hudson took part in the landing exercise in Ma‘alaea Bay on January 18, 1945, and then sailed with his unit for new mission – Iwo Jima. Hudson landed with his 2nd battalion on Blue beach 2 on February 19 with the orders to seize high ground located 500 yards inland. Advance of the battalion was halted by enemy's machine gun and mortar fire, and casualties began increasing. "Hudson continuously exposed himself in the forward areas of the beachhead to encourage and direct his subordinates in the attack. By his personal example of fearlessness, he inspired his men to move forward in the attack despite heavy mortar, artillery, machine-gun and rifle fire, and to seize its sector of the initial beachhead, which consisted of the high ground adjacent to an airfield and a considerable area of a heavily fortified cliff line." On February 20, when his battalion was subsequently pinned down again, Lieutenant Colonel Hudson repeatedly exposed himself to enemy fire in order to supervise and coordinate the attack. Although suffering painful wounds, he refused medical aid until all other casualties had been given treatment, continuing to supervise the attack until replaced by a new battalion commander, Lt.Col. James Taul. His wounds were so serious that Hudson was evacuated to the United States for treatment. For his bravery in action, Hudson was decorated with the Navy Cross, the United States military's second-highest decoration awarded for valor in combat. He also received the Purple Heart for his wounds received on Iwo Jima. Hudson returned to the States in June 1945 and attached to the Troop Training Unit, Training Command, Amphibious Forces Pacific Fleet at Coronado, California. He served under Brigadier General Harry K. Pickett as Chief of Planning section and later as Assistant Team Chief, School Team. Hudson took part in the amphibious training for Pacific Fleet units until his departure in August 1947, when he was ordered for study to Army General and Staff College at Fort Leavenworth, Kansas.