| Operation Trikora | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Part of West New Guinea dispute and Cold War in Asia | |||||||||
 Indonesian stamp commemorating the Battle of Arafura Sea | |||||||||
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| Belligerents | |||||||||
 Indonesia Soviet Union | |||||||||
| Commanders and leaders | |||||||||
|
Sukarno Soerjadi Soerjadarma Abdul Haris Nasution Ahmad Yani Soeharto Omar Dhani Eddy Martadinata Yos Sudarso † Leonardus Benjamin Moerdani |
 C.J. van Westenbrugge W.A. van Heuven | ||||||||
| Strength | |||||||||
|
Indonesia: 13,000 soldiers 7,000 paratroops 4,500 marines Soviet Union:3,000 soldiers[citation needed] |
Netherlands: 10,000 soldiers 1,400 marines 1,000 papuan volunteers | ||||||||
| Casualties and losses | |||||||||
|
214 dead[2] 1 motor torpedo boat sunk 2 motor torpedo boats damaged | 9 dead[3] | ||||||||
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Pre-Independence Domestic policy Foreign policy Family Media and legacy 
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Operation Trikora was a combined Soviet-Indonesian military operation which aimed to seize and annex the Dutch overseas territory of Netherlands New Guinea in 1961 and 1962. After negotiations, the Netherlands signed the New York Agreement with Indonesia on 15 August 1962, relinquishing control of Western New Guinea to the United Nations.
- ^ "Operation Trikora – Indonesia's Takeover of West New Guinea". Pathfinder: Air Power Development Centre Bulletin (150): 1–2. February 2011. Retrieved 27 February 2023.
- ^ 25 tahun Trikora (in Indonesian). Yayasan Badan Kontak Keluarga Besar Perintis Irian Barat. 1988. p. 192. Retrieved 1 November 2021.
- ^ "Nederland stuurt militairen naar Nieuw-Guinea". IsGeschiedenis. 27 April 2016.