KABUL—Afghan President Ashraf Ghani on Sunday proposed a conditional three-month cease-fire in the government’s U.S.-backed war against the Taliban, seeking to regain political momentum following a string of devastating battlefield losses to security forces at the hands of the insurgents.
Mr. Ghani said government forces would observe a truce in fighting with the Taliban to coincide with the start on Monday of the three-day Muslim festival of Eid al-Adha and continue it through the commemoration of the Prophet Muhammad’s birthday...