 Complete the following phrase:  A power-sharing deal was agreed upon in August 1991, dividing electoral districts by ethnicity, with the 1991 elections held under this format, though it did not last. However, with the breakdown of the Gamsakhurida government in Georgia, and efforts by Eduard Shevardnadze to delegitimize Gamsakhurdia by failing to honour agreements he signed, and Abkhaz desires to utilize the ongoing Georgian Civil War, it fell apart. Thus on 23 July 1992, the Abkhaz Supreme Soviet re-instated the 1925 constitution, which had called Abkhazia a sovereign state, albeit one in treaty union with Georgia. Georgia responded militarily on 14 August, starting a 