evidence: 1.La Isla de Anacoco en 1966, en un primer plano el caño "Brazo Negro" que se desprende del cauce principal del río Cuyuni, al centro las instalaciones de la G.N. y al fondo una línea que señala el río Cuyuní (cauce principal) que fluye al Este y que delinea la línea de facto, . Archivo de la Fundación de la Guayana Esequiba. texto corregido el 12-09-2010 2. La línea Esequiba o línea de facto 3. Ubicación des Isla de Anacoco [...] Venezuela’s illegal occupation of Ankoko Island has poisoned relations with Guyana for 44 years. [...] As soon as the last British troops left Guyana in October 1966 – Guyana’s independence year – the Venezuelan National Armed Forces seized the 7-km² Ankoko Island in the Cuyuni River. It has remained in illegal occupation ever since. The island is used as a military garrison to harass Guyanese miners and to engage in occasional acts of provocation against the Guyana Defence Force border detachment at Eteringbang on the opposite bank of the river. But the symbolism of the occupation of Ankoko has been a bone in the throat of Guyanese negotiators ever since and has intoxicated Venezuela’s diplomats with delusions of superiority.