During the Franco-Prussian War of 1870–1871, von Boehn participated in the Sieges of Metz, Toul, and Paris as well as the battles at Dreux, Bellême and partially at La Madeleine-Bouvet. He was slightly wounded at the Battle of Loigny by a shot in his right arm and awarded with the Iron Cross and the Mecklenburg Military Merit Cross for his achievements.