In August 1918, this division moved to the front where it took up a position in a sector about 20 kilometers long between Lago di Garda and the Adige River.

Their task was to guard this sector on the site of Altissimo mountain massif,[2] with Doss Alto di Nago hill (703 meters above sea level), near Nago-Torbole, as a central point.

On 21 September, the Austro-Hungarian units consisting of Riva Assault Battalion, significantly outnumbering the enemy, tried to capture trenched fortifications of Doss Alto, occupied by the soldiers of 33rd and 34th Czechoslovak Rifle Regiments.

The main weight of the defense was borne by the 33rd Czechoslovak Regiment, which, after being reinforced by reserves, successfully managed to retook previously captured trenches and defend the position.

Trojánek committed suicide by shooting himself with a revolver at his advanced post after being surrounded and threatened with capture, which for him would also mean a promped execition.