On 23 May 1915, Italy entered World War I on the side of the Allies with its declaration of war on Austria-Hungary. On 26 May 1915, the first Parasol squadron, the 2nd Artillery Squadron, was created, equipped with six Parasols. In June 1915, the squadron deployed from Pordenone to Medeuzza, a hamlet in San Giovanni al Natisone in northeastern Italy, to provide artillery observation support to the Italian Third Army as it fought in the trenches at Gorizia and on the Karst Plateau during the First Battle of the Isonzo. In the following months, the Parasols conducted several reconnaissance missions and even engaged in some sporadic bombing, with poor results. The Parasols eventually were equipped with a Rouzet radio transmitter.