How did Bismarck use war to create a united Germany under Russian rule?

Otto Von Bismarck used war strategically to unify Germany by provoking conflicts that rallied the German states around Prussia. The wars against Denmark (1864), Austria (1866), and France (1870-1871) fostered a sense of nationalism and solidarity among the German states, leading to the establishment of the German Empire in 1871. While Russia was not directly involved in these conflicts, Bismarck maintained a cautious relationship with them, ensuring that Russian interests were respected to prevent interference in his plans for German unification. Ultimately, Bismarck's wars were instrumental in consolidating German territories under Prussian leadership, rather than under Russian rule.