On May, 1915, weakened Russian forces were unable to defend Gorlice against the combined forces of Austria-Hungary and Germany's artillery barrages.
On May 1, 1915, the combined forces of Austria-Hungary and Germany initiated artillery barrages against Russian soldiers stationed on the battle line stretching from Gorlice to Tarnow. The following day, Austro-German infantry units launched an unsuccessful attack near Tarnow. In Gorlice, the weakened Russian forces were unable to defend against the Austrian and German attackers. 
