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The Corts Foundation publishes relevant Japanese war sources (the Senshi Sōsho volumes 3 : "The invasion of the Dutch East Indies" (2015), and vol. 26: “The Operations of the Navy in the Dutch East Indies and the Bay of Bengal” (2018), while parts of Senshi Sōsho vol. 34 “Army Air Drive to the Southern Pacific Area” and Senshi Sōsho vol. 5 “Operations in Burma” are due at the end of 2020). These downloads are available by Open Access and as download on this website. As these volumes reflect the Japanese vision of the second world war, it is proper to share on this webste also the official view of the Dutch government (in the Dutch language) as a reference to these texts.

Therefor The Corts Foundation made three volumes which are dedicated to the war in the former Dutch East Indies: 11a (1984), 11b (1985) and 11c (1986), five books, available and searchable on our website. They are part of the ‘Magnus Opus’ of prof. dr. L. De Jong, who was commissioned by the Dutch government (from 1955 till 1991) to research and write about the history of “The Kingdom of the Netherlands in the second World War”.
These complete series encompassed fourteen volumes in 29 books in the Dutch language and are all available on line at the website of “The National Institute for War, Holocaust and Genocide studies- NIOD” in Amsterdam. De Jong was the founder and manager of this institute from October 1945 till his retirement in May 1979.

In Holland prof. dr. L. De Jong (1914- 2005) was well known by his presentation on the National Dutch television of a series concerning the occupation of the Netherlands.

ldejong  ldejong cover

The first of volume11a describes Indian society and government. The second part concerns the buildup of Indian defenses till the Japanese invasion. Volume 11b focusses on the Japanese war in Asia, while the second part highlights the sufferings of prisoners of war and Dutch internees, and the developing situation of the Indonesian independence. The last volume 11c concerns the armed forces, merchant navy, intelligence, the return of the Dutch including the revolutionary situation.

The digitale version (in Dutch) can be viewed and downloaded here:
De Jong deel 11a, first part (1984, 572 pages) - [Open online viewer] [PDF - 10mb]
De Jong deel 11a, second part (1984, 645 pages) - [Open online viewer] [PDF - 11mb]
De Jong deel 11b, first part (1985, 516 pages) - [Open online viewer] [PDF - 11mb]
De Jong deel 11b, second part (1985, 614 pages) - [Open online viewer] [PDF - 14mb]
De Jong deel 11c (1986, 758 pages) - [Open online viewer] [PDF - 18mb]

Additionally it is worth mentioning that volume 13 “Annexes/ register (1988) provides an overview of all amendments. The period of August 145 1945 till the date of devolution of sovereingty on December 27 1949 is included in volume 12, second part “Epilogue” (1988). Comments were collected and edited in volume 14 “Comments” (1991).

Read more (in Dutch):

Journalist Herman Keppy presented his latest book 'Zijn jullie kerels of lafaards? De Indische en Indonesische strijd tegen de nazi's 1940-'45' (Eng: Are you men or cowards? The Indian and Indonesian resistence against the Nazis 1940-'45on Friday, November 29th, in the 'Verzetsmuseum' (Eng: Museum of the Resistence) in Amsterdam. The Corts Foundation made a financial contribution to realize this important publication.

thumbnail Verzetsmuseum Foto Ido Harmens

In the Verzetsmuseum copies of the book were given to children of East Indies and Indonesian people who fought against the nazis in the Netherlands. One of them, the well known Dutch singer Ernst Jansz (of the band called Doe Maar), spoke and sang about his father Rudi who had joined the resistence in Amsterdam during the war. Rudi Jansz was a member of the East Indies community that existed long before the war in the Netherlands. He was mobilised and came into action on May 10th, 1940, but later on was captured for his resistence activities. He was not the only one, as it turns out in the book by Keppy.

Mr. P. Mijer was vice-president of the high court of Justice and the high military court of Justice of the Dutch East Indies, and in 1848 he requested permission by the government in Batavia to publish several historical documents. Because the mentioned documents were of historical importance back at the time, and still are nowadays, the Corts Foundation has scanned this book publication by Mijer and created a full search with text recognition. It does justice to what Mijer himself envisioned and stated in the publication introduction: ‘... with dual objectives to make the exact texts of the oldest and most important documents of the former colonial governmental system sustainable for the future and to spread the knowledge of her main principles to a general audience.’

IORGGIt concerns a collection of instructions by Dutch authorities dating back to 1609, 1617, 1632, 1650, 1807, 1815, 1818, 1827, 1830 and 1836, addressed from Holland to the Governor Generals and the Council of the Indies and their succeeding government institutions. Mijer searched for original manuscrips in Batavia and especially from the early 17th century, but found only ‘unmarked and unofficial’ copies. He used these for his publication. Possibly the real originals can be found in the Netherlands in the archives of the so called ‘Staten Generaal’. Additionally he used a number of instructions from the early nineteenth century, a period with political changes in the Netherlands and French and British rule over the East Indies.

The digital version of this publication can be viewed here and downloaded for free.
Mijer, Batavia (1848, 560 pages) - [Open online viewer] [PDF - 18mb]

voc shipThe Indonesian VOC archives hold thousands of references on the shipping of the 17th and 18th century. It provides insight into a part of the world wide maritime network of trading posts, and can be studied by using large data sets that can be distilled from historical manuscripts.

The daily journals of the Castle of Batavia is part of the VOC archives of the National Archives of Indonesia (ANRI) in Jakarta, Indonesia. These daily journals have been scanned a few years ago and published online by the Corts Foundation and ANRI. The 117.390 marginalia of these manuscripts have been collected by senior archivist Dr. Mona Lohanda and eventually brought together in a digital document, that became the base of the online database providing a secundary entry to the scans.

The marginalia are short sentences, in the margin of the page, that summarize the adjacent text. Some of these marginalia contain names of persons, places or ships. They form separate indexes and thus access entries to the tens of thousands of marginalia (see the website of sejarah-nusantara>>).


It is not only the large ships that sailed between Batavia and Holland with big cargo's of spices, porcelain, textiles and other goods that were mentioned in the marginalia. Also thousands of other ships sailing between Batavia and numerous places in Asia, Arabia, India and many other countries were mentioned. More than 7500 ships of all kind and size and nationality.

Filtering the marginalia on ship names result in a new dataset with 37.434 records. These records clear up the many ship movements, and also cargo lists, correspondence, sales and several shipwrecks and disasters.The new dataset is freely downloadable and available for further scientific research (Excel download here>>).



The Corts Foundation

is a Dutch non profit organization that uses the legacy of Kees Corts to perform history and archive projects concerning the former Dutch Indies, especially the period of the Dutch East India company, and end of the colonial period during World War II.





Jakarta, Indonesia
Bangkok, Thailand


also the foundation::
Christiaan G. van Anrooij Fonds









Arsip Nasional Republik Indonesia





National Institute for Military History 






The Corts Foundation provides access to the content of this website, its data sets and owned publications under the creative commons licence.



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by 24 Dec. 2013