State of East Sumatra

Negara Sumatera Timur
Sumatra's Oostkust
State of the United States of Indonesia
1947 – 1950
(Sovereign state until 27 December 1949)
Coat of arms of East Sumatra
Coat of arms

Location of East Sumatra within the United States of Indonesia

State of East Sumatra and its major cities
CapitalMedan
Government
Wali Negara 
• 1947–1950
Tengku Mansur
Historical eraIndonesian National Revolution
• Established
25 December 1947
• Dissolution (law)
15 August 1950
Preceded by
Succeeded by
Indonesia
North Sumatra

The State of East Sumatra (Negara Sumatera Timur) was established by the Netherlands after the reoccupation of North Sumatra in July, 1947, during the first of the Dutch "police actions" against the fledgling Republic of Indonesia. In 1949, as part of a peace deal that concluded the Indonesian National Revolution, it joined the United States of Indonesia, of which the Republic was also a component state. In August, 1950, it was absorbed into the Republic as part of the province of North Sumatra. The area covered by the former state included the present-day regencies of Langkat, Deli Serdang, Serdang Bedagai, Karo, Simalungan, Batubara and Asahan, together with the cities geographically within those regencies.[1]

  1. ^ Reid 2014, pp. 274–277.

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