Operation Tiger (Java)
Operation Tiger was a series of World War II covert reconnaissance and infiltration missions conducted by the Netherlands East Indies Forces Intelligence Service on Japanese-occupied Java between late 1942 and 1943. Small parties were landed on Java’s south coast to collect intelligence and, where possible, establish clandestine contacts.
Some Dutch submarines operating from Australia undertook covert intelligence tasks, including landing agents on the Javanese coast.
Many of the Tiger parties were captured by the Japanese military police ; multiple participants were later executed.
Background
After the fall of the Netherlands East Indies in early 1942, NEFIS was established in Australia to support Allied planning with intelligence from the Japanese-occupied archipelago. The Tiger missions formed part of NEFIS efforts to reinsert agents onto Java to gather information and rebuild clandestine reporting channels under occupation.Dutch archival inventories describe holdings that include material relating to NEFIS “parties” sent into occupied territory.
Missions
The best-known missions were Tiger I–VI. Archival and secondary summaries generally agree on the broad pattern, but some operational details—especially the numbering and identification of Tiger IV and Tiger V—are described differently across published accounts.Tiger I
A three-person party consisting of Lieutenant Wicher Bergsma, Soetarno and J. Tapilatu was landed at Prigi Bay on 30 November 1942. A biographical account states that Tiger I were put ashore from the submarine. The party was captured; the group was imprisoned, sentenced to death and executed by firing squad on 1 December 1944 in Bodjonegoro.Tiger II
Tiger II landed at Teluk Serang on the south coast of East Java on 27 November 1942. One narrative identifies the party as led by Lieutenant B. Brocx, accompanied by Raden Iswahjoedi Wirjomihardjo and Sadimoen/Sadimoer. The same account reports that Brocx and Sadimoen were executed, while Iswahjoedi survived.Tiger III
Tiger III is described as a single-person insertion at Teluk Tapen on 9 February 1943. The operative is identified as Daniel Lapod. A longer account describes Lapod’s tasking as network-building and intelligence collection, followed by capture and execution in Surabaya on 4 May 1943; burial is described at Ereveld Ancol.Tiger IV
A summary in the National Archives of Australia “Special Operations – Australia” history lists Tiger IV as a single-person landing at Pang Pang Baai on 16 April 1943 and identifies the operative as Raden Mas Soejitno.However, one secondary narrative places Tiger IV and Tiger V as separate landings in the Pangpang area in early May 1943 and reverses the identification of the operatives.