Lost Territories: How Brunei Shrank from a Vast Empire to a Small Country

Lost Territories: How Brunei Shrank from a Vast Empire to a Small Country
Brunei © PublicDomainPictures from Pixabay

Brunei, a small country located on the island of Borneo in Southeast Asia, was once a powerful empire with a vast territory that extended over much of Borneo, as well as parts of present-day Malaysia, Indonesia, and the Philippines. So how did a country that was once so large become so small? The decline of the Bruneian Empire can be attributed to a range of internal and external factors, including political instability, succession disputes, and colonialism.

According to historical records, Brunei's early history dates back to the 7th century when it was part of the Srivijaya Empire, a powerful maritime empire that controlled much of Southeast Asia. Over time, Brunei gained independence from Srivijaya and became a thriving center of trade and commerce.

Keterangan Gambar (© Pemilik Gambar)
Brunei at its heaight (1521)

The Bruneian Empire emerged as a powerful state in the 14th century, known for its naval power and control of trade and commerce in the area. Its navy was composed of powerful warships called jong, which were built in Brunei's shipyards. However, the decline of the Bruneian Empire was partly due to internal political struggles and succession disputes among the royal family. This weakened the sultanate's ability to resist external threats and led to its fragmentation.

One of the most significant territorial changes in Brunei's history occurred in 1888, when it signed a treaty with Great Britain that effectively ceded control of its northern territories to the British. This territory later became known as North Borneo (now Sabah, a state in Malaysia). In 1906, Brunei signed another treaty with Great Britain that established a British protectorate over the sultanate. This allowed the British to control Brunei's foreign policy and protect it from external threats .

The Bruneian Empire was relatively isolated from European colonialism until the arrival of the British in the 19th century. The British were interested in Brunei's strategic location and its natural resources, particularly its rich oil deposits. In the late 19th century, the British North Borneo Company established a presence in the northern part of Borneo, effectively creating a buffer zone between Brunei and the British colonies in Malaya and Singapore .

As British influence in the region grew, Brunei's territorial integrity came under threat. In the 19th and early 20th centuries, the British signed a series of treaties with Brunei that effectively eroded its sovereignty and control over its own affairs. The treaties gave the British control over Brunei's external affairs, while allowing the sultanate to maintain control over its internal affairs .

During World War II, Brunei was occupied by the Japanese and suffered significant damage. After the war, the sultanate was placed under British military administration until it gained independence in 1984. The process of decolonization was a long and complex one, marked by negotiations between Brunei and the British government over issues such as constitutional reform and the role of the British military in the country .

Despite its relatively small size, Brunei is a sovereign state with a rich cultural heritage. It is home to a diverse population that includes several indigenous groups, such as the Malay, Chinese, and indigenous tribes such as the Iban and Dayak (Brunei Tourism, n.d.). Brunei's oil and gas reserves have been a major source of its economic prosperity. The country is a member of the Organization of the Petroleum Exporting Countries (OPEC) and its oil and gas industry accounts for over 90% of its exports.

Brunei's history is a testament to the changing fortunes of Southeast Asia over the centuries. While Brunei was once a powerful empire that controlled a vast territory, it has since been reduced to a small but prosperous country. Nevertheless, Brunei continues to play an important role in the region and its history serves as a reminder of the region's rich cultural heritage.


  1. BBC News. (2017, May 4). Brunei country profile. Retrieved from
  2. Brunei Tourism. (n.d.). Culture and heritage. Retrieved from
  3. Kershaw, R. B. (1994). Brunei: The modern Southeast Asian Islamic state. Oxford University Press.
  4. Loh, F. K. (1996). Brunei. In J. R. Kennedy (Ed.), The making of South East Asia (pp. 157-185). University of California Press.
  5. OPEC. (2022). Member countries. Retrieved from
  6. Reid, A. (2012). Southeast Asia in the age of commerce, 1450-1680. Yale University Press.
  7. Tarling, N. (1992). The Cambridge history of Southeast Asia: Volume 2, the nineteenth and twentieth centuries. Cambridge University Press.
  8. Warren, J. F. (1981). The Sulu zone, 1768-1898: The dynamics of external trade, slavery, and ethnicity in the transformation of a Southeast Asian maritime state. Singapore University Press.
Akhyari Hananto

I began my career in the banking industry in 1997, and stayed approx 6 years in it. This industry boost his knowledge about the economic condition in Indonesia, both macro and micro, and how to More understand it. My banking career continued in Yogyakarta when I joined in a program funded by the Asian Development Bank (ADB),as the coordinator for a program aimed to help improve the quality of learning and teaching process in private universities in Yogyakarta. When the earthquake stroke Yogyakarta, I chose to join an international NGO working in the area of ?disaster response and management, which allows me to help rebuild the city, as well as other disaster-stricken area in Indonesia. I went on to become the coordinator for emergency response in the Asia Pacific region. Then I was assigned for 1 year in Cambodia, as a country coordinator mostly to deliver developmental programs (water and sanitation, education, livelihood). In 2009, he continued his career as a protocol and HR officer at the U.S. Consulate General in Surabaya, and two years later I joined the Political and Economic Section until now, where i have to deal with extensive range of people and government officials, as well as private and government institution troughout eastern Indonesia. I am the founder and Editor-in-Chief in Good News From Indonesia (GNFI), a growing and influential social media movement, and was selected as one of The Most Influential Netizen 2011 by The Marketeers magazine. I also wrote a book on "Fundamentals of Disaster Management in 2007"?, "Good News From Indonesia : Beragam Prestasi Anak Bangsa di dunia"? which was luanched in August 2013, and "Indonesia Bersyukur"? which is launched in Sept 2013. In 2014, 3 books were released in which i was one of the writer; "Indonesia Pelangi Dunia"?, "Indonesia The Untold Stories"? and "Growing! Meretas Jalan Kejayaan" I give lectures to students in lectures nationwide, sharing on full range of issues, from economy, to diplomacy Less
View all posts

Thank you for reading until here