In late 1808, Dode de la Brunerie was sent to Spain. He participated in the sieges of Zaragoza and of Badajoz. He was then promoted to "général de brigade" and made head of the engineers staff of the "Army of Spain". Dode de la Brunerie served in battles near Almonacid and Ocana until he was recalled to France. In 1812, Dode de la Brunerie was made head of the engineers in the III Corps under Marshal Ney. He successively fought under Marshals Oudinot, Gouvion Saint-Cyr and Victor in Russia, where he fought at Polotsk and the crossing of the Beresina.