page_title: No. 18 (Netherlands East Indies) Squadron RAAF
section_title: World War II
hierarchical_section_title: No. 18 (Netherlands East Indies) Squadron RAAF / History / World War II
caption_attribution_description: English: AWM Caption: Darwin. c. 1943. Eight North American B25 Mitchell bomber aircraft fly over the coast near Darwin. Note the aircraft are all carrying Netherlands East Indies (NEI) registrations and markings. Nederlands: Darwin 1943. Acht B-25 Mitchell bommenwerpers vliegen langs de kust van Darwin in Australië. De vliegtuigen dragen de markering en registratienummers van de Nederlands Indische Luchtmacht
context_page_description: No. 18 (Netherlands East Indies) Squadron was a joint Dutch and Australian bomber squadron of World War II. Formed in April 1942, the squadron was staffed by a mixture of Dutch and Australian personnel and placed under Royal Australian Air Force operational command. Initially it undertook anti-submarine patrols on the east coast of Australia, before moving to northern Australia and taking part in operations against the Japanese in the islands of the Netherlands East Indies. At the conclusion of hostilities, the squadron came under Dutch control and Australian personnel were transferred out. The squadron then undertook operations during the Indonesian National Revolution, before eventually being disbanded in July 1950 after being transferred to Indonesia.
context_section_description: No. 18 (NEI) Squadron was formed at RAAF Station Canberra on 4 April 1942, under the operational command of the Royal Australian Air Force's No. 79 Wing.  Like the other two joint Australian-Dutch squadrons – Nos. 119 and 120 Squadrons – the Dutch authorities provided No. 18 Squadron's pilots and aircraft, which had been obtained from the United States via the Lend Lease program. The majority of the aircrew were Dutchmen who had been evacuated from the Netherlands East Indies after the Japanese invasion, while most of the groundcrew were Australian. Unlike the other two squadrons, however, the RAAF also provided many aircrew to the squadron: on formation there was a total of 242 Dutch and Javanese personnel and 266 Australian personnel; all aircraft were captained by a Dutch officer, while the remaining aircrew positions were filled by a mixture of Dutch and Australian personnel. The squadron was commanded overall by a Dutch officer throughout the war; but the unique situation of having Dutch and Australian members meant that Dutch personnel were administered under Dutch regulations, while the Australian component was administered and commanded separately by an Australian officer of the rank of squadron leader. The squadron's aircraft were painted with Dutch flags, instead of RAAF markings.
  No. 18 (NEI) Squadron received its first five B-25 Mitchell medium bombers in April 1942. These aircraft were used for both training and anti-submarine patrols. While the squadron briefly operated 10 A-20 Havoc light bombers in early 1942, it was fully equipped with 18 B-25s by 21 September 1942, following what was wrongly believed to have been a successful attack by one of the squadron's Mitchells, piloted by Captain Guus Winckel, on a Japanese submarine off the New South Wales coast near Moruya in June.
  On 4 December 1942, No. 18 (NEI) Squadron deployed to a partially constructed MacDonald Airfield in the Northern Territory to operate in the North Western Area. After a period of further training, the squadron began flying operational missions in early January 1943 and was primarily tasked with reconnaissance flights and raids on Japanese ships and bases in the occupied NEI, focusing on East Timor, and on Tanimbar and Kai Island. While the squadron suffered considerable casualties in these raids, it did not receive any replacement crews until September 1943 when new and more heavily armed B-25s were delivered along with fresh crews who had been trained at a Dutch flying school in the United States.
  No. 18 (NEI) Squadron relocated from MacDonald to Batchelor in May 1943. As the Japanese presence in the eastern NEI declined, the Dutch authorities requested that No. 18 (NEI) Squadron be re-equipped with longer ranged B-24 Liberator heavy bombers, but was declined and the squadron continued to operate B-25s. Throughout 1943, the squadron undertook further reconnaissance missions and attacks on Japanese shipping around the NEI, before shifting focus in November 1943 and March 1944 upon Japanese supply routes to north-eastern Papua New Guinea, during which the squadron sank over 25,000 tons of Japanese shipping. Part of the squadron was detached to Exmouth, Western Australia in March 1944, in response to Allied intelligence that a Japanese attack on Fremantle or Perth was likely, but it returned to Batchelor shortly afterwards after which the squadron attacked  targets in the NEI for the remainder of the year, focusing especially on Japanese airfields. Anti-shipping attacks were also undertaken, and on one raid around Tioor Island on 23 June, the squadron's commanding officer, Lieutenant Colonel E.J.G. Te Roller, was killed.
  In February 1945, part of the squadron was moved to New Britain, where they were based at Jacquinot Bay, as part of a plan to relocate the entire squadron. In April, the squadron took part in an attack that damaged the Japanese cruiser Isuzu north of Sumbawa. The detachment on New Britain was moved to Morotai Island in June after the plan to move the squadron to New Britain was reversed following Dutch appeals to be se
caption: B-25 Mitchell bombers from No. 18 (NEI) Squadron flying in formation near Darwin in 1943
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