The Constitutional Court of Bosnia and Herzegovina declared the breakaway Croatian Republic of Herzeg-Bosnia to be unconstitutional.

Croatian Republic of Herzeg-Bosnia

Unrecognized proto-state in the Balkans (1991–1996); now part of Bosnia and Herzegovina

The Croatian Republic of Herzeg-Bosnia was an unrecognized geopolitical entity and quasi-state in Bosnia and Herzegovina. It was proclaimed on 18 November 1991 under the name Croatian Community of Herzeg-Bosnia as a "political, cultural, economic and territorial whole" in the…