The HDZ BiH was established as a branch of the ruling party in Croatia, the Croatian Democratic Union (HDZ). While it called for the independence of the country, there was a split in the party with some members advocating secession of Croat-majority areas. In November 1991, the Croat leadership organised autonomous communities in areas with a Croat majority. On 12 November 1991, the Croatian Community of Bosnian Posavina was established in Bosanski Brod. It covered eight municipalities in northern Bosnia. On 18 November 1991, the Croatian Community of Herzeg-Bosnia was established in Mostar. Mate Boban was chosen as its president. Its founding document said: "The Community will respect the democratically elected government of the Republic of Bosnia and Herzegovina for as long as exists the state independence of Bosnia and Herzegovina in relation to the former, or any other, Yugoslavia".