Horsemen from the Chaoui tribes of Algeria's eastern Aures region

Horsemen from the Chaoui tribes of Algeria's eastern Aures region fire celebratory gunshots in Tebessa, Algeria, on Tuesday, March 31, 2009, as Algerian President Abdelaziz Bouteflika (not pictured) campaigns for re-election next month. The Algerian president took his campaign for re-election deep into the hinterland Tuesday, testing his popularity in the eastern highlands where al-Qaida-linked militants have increased bloody attacks in recent months.