Sep 26 - Sep 28, 2024:
Marine Corps Engineer Association (MCEA)More Details
Patch
Unit Details
Strength
Battalion
Type
Air Defense
Year
1944 - 1946
Description
The 1st and 2d Aviation Engineer Battalions were activated in May 1942 as Fleet Marine Force troops attached to IMAC. Lightly equipped, their three companies were intended to be airlifted onto islands to repair captured airfields. With no opportunities to be employed as such and the availability of Naval construction battalions for airfield rehabilitation and construction, they were provided with heavier equipment and re-designated "Separate Engineer Battalions," to differentiate them from the 1st and 2d {Divisional} Engineer Battalions, on 1 May 1944, the 1st and 2d Separate Engineer Battalions were then attached to III AC and VC, respectively. The battalions received a topographic company (Company D) in late 1944, but these were made separate companies in February 1945.
Bn Activated Deactivated
1st 1 May 1942 at New River 20 Aug 1946 Camp Pendleton
2nd 8 May 1942 Camp Elliot 6 Feb 1946 Camp Pendleton
Description
The 2nd and 4th Marine Divisions landed on 24 July 1944, supported by naval bombardment and artillery firing across the strait from Saipan. A successful feint for the major settlement of Tinian Town diverted defenders from the actual landing site on the north of the island. The battleship Colorado and the destroyer Norman Scott were both hit by 6-inch (150 mm) Japanese shore batteries. Colorado was hit 22 times, killing 44 men. Norman Scott was hit six times, killing the captain, Seymore Owens, and 22 of his seamen. The Japanese adopted the same stubborn resistance as on Saipan, retreating during the day and attacking at night. The gentler terrain of Tinian allowed the attackers more effective use of tanks and artillery than in the mountains of Saipan, and the island was secured in nine days of fighting. On 31 July, the surviving Japanese launched a suicide charge.
The battle saw the first use of napalm in the Pacific. Of the 120 jettisonable tanks dropped during the operation, 25 contained the napalm mixture and the remainder an oil-gasoline mixture. Of the entire number, only 14 were duds, and eight of these were set afire by subsequent strafing runs. Carried by Vought F4U Corsairs, the "fire bombs", also known as napalm bombs, burned away foliage concealing enemy installations.
Aftermath
Japanese losses were far greater than American losses. The Japanese lost 8,010. Only 313 Japanese were taken prisoner. American losses stood at 328 dead and 1,571 wounded. Several hundred Japanese troops held out in the jungles for months. The garrison on Aguijan Island off the southwest cape of Tinian, commanded by Lieutenant Kinichi Yamada, held out until the end of the war, surrendering on 4 September 1945. The last holdout on Tinian, Murata Susumu, was not captured until 1953.
After the battle, Tinian became an important base for further Allied operations in the Pacific Campaign. Camps were built for 50,000 troops. Fifteen thousand Seabees turned the island into the busiest airfield of the war, with six 7,900-foot (2,400 m) runways for attacks by B-29 Superfortress bombers on targets in the Philippines, the Ryukyu Islands and mainland Japan, including the atomic bombings of Hiroshima and Nagasaki.
Four 1000-bed hospitals were planned and located in preparation for the invasion of Japan. None were actually built, as the Japanese surrendered after the atomic bombs were dropped, which thus ended the need for the hospitals.