Northern Ireland's pro-UK unionists and loyalists celebrate annually a victory of Protestant king over a Catholic rival in 1690 by building bonfires, holding parades, and street parties. In recent years anti-migrant banners have been placed on the pyres as well as Irish flags and election posters of Irish nationalist politicians. This year a model of a boat with life-sized mannequins depicting refugees was placed on top of one bonfire, a potent example of how the province's deep sectarian divide has fanned and mixed with anti-immigrant hatred. According to Dominic Bryan, an anthropology professor at Queen's University Belfast, loyalists have ceded ground demographically, economically, and politically to pro-Irish unity nationalists in recent decades, and migrants have become an outlet for their frustration. IMAGES AND SOUNDBITES