This article relies largely or entirely on a single source. (June 2013)
The Tigri Area (Dutch: Tigri-gebied) is a wooded area that has been disputed since around 1840 by Suriname and Guyana. It involves the area between the Upper Courantyne River (also called New River), the Coeroeni River and the Kutari River. This triangular area is in Guyana known as the New River Triangle. In 1969 the conflict ran high on and since then the Tigri Area is controlled by Guyana and claimed by Suriname. In Suriname it is seen as a part of the Coeroeni Resort located in the Sipaliwini District, while for Guyana it belongs to the region of East Berbice-Corentyne. Suriname also disputes the southern part of the border with French Guiana.
History of the Tigri Area territorial dispute
Robert Schomburgk surveyed British Guiana's borders in 1840. Taking the Courantyne River as the border, he sailed up to which he deemed its source, the Kutari River, in order to delineate the boundary. In 1871, however, Charles Barrington Brown discovered the New River or Upper Courantyne, which is the source of the Courantyne River. Thus the Tigri Area or New River Triangle dispute was born.
The tribunal which dealt with the Venezuela Crisis of 1895 also illegally awarded the New River Triangle to British Guiana. The Netherlands, however, raised a diplomatic protest, claiming that the New River, and not the Kutari, was to be regarded as the source of the Courantyne and the boundary. The British government in 1900 replied that the issue was already settled by the long acceptance of the Kutari as the boundary.
In 1936, a Mixed Commission established by the British and Dutch government agreed to award the full width of the Courantyne River to Suriname, as per the 1799 agreement. The territorial sea boundary was deemed to prolongate 10° from Point No. 61, three miles from the shore. The New River Triangle, however, was completely awarded to Guyana. The treaty putting this agreement into law was never ratified, because of the outbreak of World War II.
Desiring to put the border issue to a closure before British Guiana would gain independence, the British government restarted negotiations in 1961. The British position asserted "Dutch sovereignty over the Corentyne River, a 10° line dividing the territorial sea, and British control over the New River Triangle." The Netherlands replied with a formal claim to the New River Triangle, but with a thalweg boundary in the Courantyne River (the latter position has never been repeated by any Surinamese government). No agreements were made and Guyana became independent with its borders unresolved. In 1969, border skirmishes occurred between Guyanese forces and Surinamese militias. In 1971, the Surinamese and Guyanese government agreed in Trinidad to withdraw military forces from the Triangle. Until present Guyana has not withdrawn any of its military forces and still holds a firm grip on the New River Triangle or Tigri Area.