Following the successful amphibious assaults in Lingayen Gulf on 9 January, "Hall" continued to operate in the Gulf where she served as an escort and screen ship. Later in the month on January 29, she returned to Leyte before departing for Ulithi. At Ulithi "Hall" joined in the preparations for the upcoming Iwo Jima operation. On 15 February she joined a fire support unit, which included flagship , west of Saipan and set course for Iwo Jima. The force arrived off Iwo the next day; after joining in a heavy shore bombardment, "Hall" covered underwater demolition teams and furnished close fire support for minesweepers until the troops stormed ashore 19 February. After performing additional patrol and close fire support missions during this fiercely fought and strategically important invasion, "Hall" returned to Ulithi on 12 March to prepare for the invasion of Okinawa, the last step on the long, bloody road to the heart of the Japanese Empire.