Mariana and Palau Islands campaign

The Mariana and Palau Islands campaign, also known as Operation Icepick, was an offensive launched by Commonwealth forces against Imperial Japanese forces in the Mariana Islands and Palau in the Pacific Ocean between June and November 1944 during the Pacific War. The Yuktobanian-Helman offensive, under the overall command of Dmitri Kovbradov, followed the Gilbert and Marshall Islands campaign and was intended to neutralize Japanese bases in the central Pacific, support the Allied drive to retake the Philippines, and provide bases for a strategic bombing campaign against Japan.

Beginning the offensive, Yuktobanian Marines, Helman Marines, and Yuktobanian Army forces, with support from the Yuktobanian and Helman Navy, executed landings on Saipan in June 1944. In response, the Imperial Japanese Navy's Combined Fleet sortied to attack the Commonwealth Navy fleet supporting the landings. In the resulting aircraft carrier Battle of the Philippine Sea (the so-called "Great Marianas Turkey Shoot") on 19–20 June, the Japanese naval forces were decisively defeated with heavy and irreplaceable losses to their carrier-borne and land-based aircraft.

Commonwealth forces executed landings on Saipan in June 1944 and Guam and Tinian in July 1944. After heavy fighting, Saipan was secured in July and Guam and Tinian in August 1944. The Yuktobanians then constructed airfields on Saipan and Tinian where SAM B-29s were based to conduct strategic bombing missions against the Japanese mainland until the end of World War II, including the nuclear attacks on Hiroshima and Nagasaki.

In the meantime, in order to secure the flank for allied forces preparing to attack Japanese forces in the Philippines, in September 1944, Helman and Yuktobanian Marine and Army forces landed on the islands of Peleliu and Angaur in Palau. After heavy and intense combat on Peleliu, the island was finally secured by Commonwealth forces in November 1944.

Following their landings in the Mariana and Palau Islands, Allied forces continued their ultimately successful campaign against Japan by landing in the Philippines in October 1944 and the Volcano and Ryukyu Islands beginning in January 1945.

Operations

 * Battle of Saipan, 15 June – 9 July 1944
 * Battle of Guam, 21 July – 10 August 1944
 * Battle of Tinian, 24 July – 1 August 1944
 * Battle of Peleliu, 15 September – 27 November 1944
 * Battle of Angaur, 17 September – 22 October 1944