High Quality Content by WIKIPEDIA articles! Arkaitz Goikoetxea Basabe (born May 4, 1980) is a member of the Basque separatist organisation ETA. He began his violent activity at the age of 15 as a member of the street violence groups known as kale borroka. He was arrested several times between 2001 and 2002, and joined ETA in 2005.