Sudan’s Transitional Military Council and leaders from the protest movement signed a constitutional declaration Sunday that they say will usher in a transition to civilian rule. Months of unrest and deadly protests have followed the April overthrow of Sudan’s former authoritarian President Omar al-Bashir after a mass popular uprising. The two sides agreed to a power-sharing deal last month, but talks have been repeatedly derailed due to violent incidents, including, most recently, a deadly attack by security forces on teenage students protesting military rule.