In August 1915, a young French infantry officer, Captain André Laffargue ( fr ) , put forward additional ideas in a pamphlet titled Étude sur l’attaque dans la période actuelle de la guerre ('Study of the Attack in the Current Period of the War').  Laffargue based his proposals in particular on his experiences in the initially successful but ultimately disappointing results of employing the tactics of Note 5779 at the Second Battle of Artois; he commanded a company of the 153rd Infantry Regiment, attacking immediately south of Neuville-Saint-Vaast on 9 May 1915. Laffargue was left wounded on the German front line but his regiment advanced another kilometres ( mi), only to be held up by two German machine guns. Laffargue's pamphlet focused primarily on the small-unit perspective, calling for mobile firepower to deal with local resistance such as machine guns, advocating that the first waves of an attack advance through the intervals or gaps between centres of resistance, which should be temporarily neutralised on the edges by fire or heavy smoke. The points of resistance would then be encircled and dealt with by successive waves. This promotes coordinating local forces to deal with local resistance as it is encountered, an important second step in infiltration tactics. Laffargue suggests that had these methods been followed the attack could have resulted in a complete breakthrough of the German defences and the capture of Vimy Ridge .