Military on Gebe Island. Indonesia began seeking weapons from abroad in response to the conflict with the Netherlands. Having failed to secure anything from the United States (Dutch membership in
NATO was the possible reason), General
Nasution went to
Moscow in December 1960 to negotiate what eventually turned out to be a US$2.5 billion arms package with the Soviet government. The subsequent deliveries that arose from this deal led the Indonesian National Armed Forces (TNI) to boast that Indonesia had the strongest air force in the southern hemisphere. The
United States did not support the surrender of West Papua to Indonesia, since the
Bureau of European Affairs considered it an act of trading one occupying power for another. However, in April 1961,
Robert Komer and
McGeorge Bundy began to prepare plans for the United Nations to give the impression that surrender to Indonesia was legal. Although reluctantly, President
John F. Kennedy finally supported these plans, fearing that, without US support, the Indonesians would become further entrenched into the Soviet-bloc. Indonesia bought various kinds of military equipment, including 41
Mi-4 and nine
Mi-6 helicopters, 30
MiG-15, 49
MiG-17, ten
MiG-19 and 20
MiG-21 fighter jets, 12
Whiskey-class submarines, 12
Komar-class missile boats, and one ex-Soviet Navy
Sverdlov-class cruiser which was renamed the . Among bombers it bought from the Soviet Union were 22
Ilyushin Il-28 light bombers, 14
Tu-16 long-range medium bombers, and 12 maritime versions of Tu-16 aircraft equipped to launch the
AS-1 Kennel anti-ship missiles. The transport aircraft it acquired included 26
IL-14 and
Avia-14 light transport aircraft, six
Antonov An-12 heavy transports, and ten
C-130 Hercules tactical transport aircraft.
Airbases To achieve air superiority, the first preparations undertaken by the
Indonesian Air Force (AURI) were to repair war-damaged airbases, which would be used for infiltration and conventional operations on the West Irian mainland.
Air bases and
landing strips which were common along the borders of
Maluku and West Irian, were relics of
imperial Japanese presence. Such airbases and landing strips were last used in 1945, and had since fallen into disrepair.
Soviet involvement Soviet support of Indonesia played a crucial role in ending the conflict over New Guinea. Owing to the support of Soviet submarines and bombers, Indonesian military forces could confidently launch attacks on Dutch troops. In response to the Soviet presence, the United States put pressure on the Netherlands to relinquish control of West Papua. At the height of the Cold War, it was strategically critical that Indonesia remain outside the Soviet sphere of influence, which made the US willing to take action to ensure a neutral or friendly relationship with Indonesia. By enforcing the transfer of New Guinea, the US could keep the Sukarno regime friendly. As the US relinquished support, the Dutch eventually gave way to US pressure and the threat of an extended conflict in New Guinea. The Soviet support was secret – the "volunteers" wore Indonesian uniforms. However, according to Khrushchev's memoirs, Indonesian Foreign Minister
Soebandrio let the Soviet willingness to actively provide military support leak to
Howard P. Jones, the US ambassador in Jakarta. Admiral Sudomo revealed in a newspaper article in 2005 that six Soviet submarines supported the amphibious operations while stationed in Bitang, East Sulawesi, tasked to attack the Dutch fleet in Manokwari. Submarine commander Rudolf Ryzhikov recalled in a Russian article he received orders on 29 July from Admiral
Sergey Gorshkov to patrol a combat zone west of New Guinea and sink any shipping after midnight on 5 August. Naval officer and Historian Matthijs Ooms has shown in his masterpaper that the Dutch naval intelligence service, MARID (Marine Inlichtingendienst), received information in the summer of 1962 that Soviet crews were manning Indonesian submarines and Tupolev bombers. In his memoirs, Khrushchev freely admitted that during the West New Guinea crisis Soviet personnel had been commanding Indonesian submarines and piloting Tu-16s.
Diplomacy In the buildup to the conflict, Indonesia approached key regional players including
India,
Pakistan,
Australia,
New Zealand,
Thailand,
United Kingdom,
West-Germany, and
France to ensure that they would not support the Netherlands in a potential Dutch-Indonesian conflict. In the United Nations General Assembly in 1961, the UN Secretary General
U Thant asked
Ellsworth Bunker, a US diplomat, to submit proposals addressing the problem of the status of West Irian. Bunker proposed that the Netherlands cede West Irian to Indonesia through the United Nations within a period of 2 years.
Economy On 27 December 1958, President Sukarno issued Law No. 86 of 1958 concerning the nationalization of all Dutch companies in Indonesia. Nationalized companies included: • Plantation companies • Nederlandsche Handel-Maatschappij • Electricity companies • Petroleum companies • Hospital (CBZ) becomes RSCM While other policies were implemented, including: • Moving the Indonesian
tobacco auction market to
Bremen,
West Germany • Dutch workers strike in Indonesia • Prohibiting
KLM (a Dutch airline) from entering Indonesian airspace • Prohibiting the screening of Dutch films
General strategy In accordance with the development of the Trikora situation, instructions were given by the Commander in Chief of the Highest Commodity of Liberation of West Irian No. 1 to Major General
Suharto, Commanding General of the Mandala Command, which were the following: • Plan, prepare, and conduct military operations with the aim of unification of West Papua as part of the territory of Indonesia. • Developing the situation in West Papua in accordance with the struggle in the field of diplomacy and in the shortest possible time in this region creating de facto regions of Indonesian control. Strategies developed by the CGMC to carry out these instructions included the following: • Infiltration (until the end 1962), namely by deploying infantry units around certain targets to create a strong de facto free area that is resistant to destruction by the enemy and to develop territorial control by unifying the local populace. • Exploitation (early 1963), namely carrying out an open attack on enemy forces and occupying all important enemy defense posts. • Consolidation (early 1964), namely by demonstrating the power and absolute sovereignty of the Republic of Indonesia throughout West Papua == Indonesian military operations ==