"1989 Sukhumi riots" . "ethnic riots" . . "first armed clashes" . . "18 deaths" . "violence of July 1989" . "1989 riots" . . . "clashes between Georgians and Abkhazians" . "clashes in the city" . . . . "dispute turned violent" . . "Sukhumi" . . . . "1989 Sukhumi riots" . . . . "riots" . .