Voters in Guinea-Bissau will decide on August 30 whether to approve a new constitution that would significantly increase the president's executive authority, reduce parliament from 102 to 65 seats, and cut electoral constituencies from 29 to 12. The proposed changes also introduce new requirements for presidential candidates and political parties. The vote comes nine months after a military coup installed a transitional government, with supporters arguing it will reduce political instability, while critics warn of excessive power concentration.