State of East Sumatra replaced by 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.
substituted by superseded by succeeded by followed by replaced with