ALGIERS/RABAT (Reuters) - The leader of the Polisario Front, Western Sahara’s independence movement, said on Saturday the group had ended a 29-year ceasefire with Morocco to resume its armed struggle following a border confrontation.A collapse of the truce, which Morocco has said it intends to stick with, could reignite a long-dormant guerrilla war in the remote desert region and aggravate decades of friction between Morocco and neighbouring Algeria, which hosts the Polisario. Polisario leader Ibrahim Ghali said he had signed a decree announcing the end of the group’s commitment to abide by the truce, and blamed Morocco for breaking it. His statement was carried by the group’s official news agency, which also said Polisario fighters had attacked Moroccan positions along different parts of the frontline, which stretches hundreds of miles across the desert.