The First Battle of the Isonzo was fought between the Armies of Italy and Austria-Hungary on the Italian Front in World War I, between June 23 and July 7, 1915. The aim of the Italian Army was to drive the Austrians away from its defensive positions along the Soča (Isonzo) and on the nearby mountains. The heaviest fighting occurred around Gorizia where Italian troops were able to advance as far as the suburbs, only to be later repelled.