Miller, assigned to the Pacific in Destroyer Squadron 52 (DesRon 52) throughout her World War II service, departed 20 November 1943, for
Pearl Harbor. There she conducted exercises until 22 January 1944, interrupted by an escort mission to
Makin. On the 23rd she got underway and sailed west with Task Force 51 (TF 51). For the next month she provided screening and gunfire support services as that force assaulted and occupied
Kwajalein and
Eniwetok. She departed the latter 24 February for
Majuro where she joined the
Fast Carrier Task Force (then
5th Fleet's TF 58, later
3rd Fleet's TF 38), with which she operated for the remainder of the war. On 22 March the
aircraft carriers, supported by
battleships and
cruisers, and screened by a ring of destroyers, departed Majuro with
Miller in the outer ring of steel. Completing strikes at
Palau,
Yap,
Ulithi, and
Woleai (29 March–1 April) they returned briefly to Majuro and then headed for
New Guinea where they supported Army assault forces with raids on
Hollandia,
Wakde,
Sewar, and
Sarmi (21 April–22 April) and then raided
Truk,
Satawan, and
Ponape (29 April–1 May). Next the force hit
Marcus and
Wake Islands (19 May–23 May) and then prepared for the
Marianas campaign. On 6 June the carrier force sortied from Majuro again. From the 11th through the 17th its planes and ships ranged from the
Volcano and
Bonin Islands to the southernmost Marianas, supporting the
assault on Saipan and preventing
Japanese reinforcements from reaching that beleaguered island and the next target,
Guam. On the 17th, after screening the carriers during flight operations for strikes against
Saipan,
Tinian,
Rota, and Guam,
Miller received word of a Japanese Fleet approaching from the
Philippines. On the 18th she continued to cover the assault forces on Saipan while waiting for the expected engagement. On the 19th she was on the starboard quarter of as enemy dive bombers opened the
Battle of the Philippine Sea. Throughout the 2-day battle, which tore the muscle from the Japanese naval air arm, she remained in that carrier's screen, splashing one enemy plane and damaging another. After brief upkeep at Eniwetok,
Miller got underway to rendezvous with the remainder of the task force for further strikes on
Iwo Jima and
Chichi Jima (3–4 July) and Palau, Ulithi, and Yap (23–27 July). On 30 August the force sailed to support the landings in the Palaus by conducting raids against Palau,
Mindanao,
Leyte,
Luzon, and
Samar (7–24 September). In October, operating from Ulithi, the task force prepared for the return to the Philippines with strikes on enemy installations in shipping in the
Ryūkyūs, on
Taiwan, and in the
South China Sea. On the 20th, it commenced support of amphibious operations
on Leyte and Samar. Five days later
Miller joined the screen of Task Group 34.5 (TG 34.5), then operating with TG 38.2. The two groups then sailed to assist TF 77 which had engaged an enemy force in
Surigao Strait in an opening phase of the epic
Battle of Leyte Gulf. Shortly after midnight, while patrolling the waters at the eastern end of
San Bernardino Strait, TG 34.5 sighted an enemy destroyer. After several exchanges of gunfire,
Miller and closed in to finish off the target, accomplishing their missions in under 20 minutes.
Miller then rejoined TF 38 which had resumed air operations against the Philippines. The force raided air installations on Luzon, Leyte, and Samar into November, receiving, on the 19th, its first taste of a new Japanese tactic, the
kamikaze. Six days later several of the suicide planes broke through the screen of planes and destroyers to score hits on the carriers , , and . With slight damage, except to
Intrepid, the force retired to Ulithi. Thence the force sortied, 11 December, to support amphibious operations on Mindoro, and keep Japanese air forces pinned to the ground. Next came strikes on Taiwan, followed by another return to the Philippines to support amphibious operations, this time in
Lingayen Gulf. == 1945 ==