The migration of the Basques to the Pacific Northwest at the turn of the century was due to a number of factors including economic, cultural and political. The Basques constitute a distinct ethnic group from northern Spain and southern France, whose origins have not yet been determined by historical, linguistic, or archaeological studies. From ancient times, the Basques have fought to maintain their cultural identity and political freedom against invaders, developing in this struggle a strong sense of racial group solidarity. The lack of opportunity for advancement and the obligation to serve in the military were added reasons for the journey to America, as an alternative to political and cultural oppression.