Chad holds presidential election as Deby vies to extend rule

By Madjiasra Nako N'DJAMENA (Reuters) - Chad voted in a presidential election on Sunday at which incumbent Idriss Deby is running for a fifth term in office arguing that only his government can maintain stability in the face of a threat from Islamist militants. Boko Haram has staged a series of attacks in Chad in the past year as part of a campaign to expand its Islamist insurgency from bases in northeastern Nigeria into neighbouring countries. Chad has one of the most capable armies in the regi