Prussian Prime Minister used power and practicality, a strategy known as , to achieve the unification of. He was known for provoking other countries intoin order to strengthen Prussian power and increase Prussian territory.

The Prussian Prime Minister was Otto von Bismarck, who used realpolitik: a practical, power-focused approach to politics. He helped unify Germany by provoking conflicts that strengthened Prussia and expanded its territory. The correct choice is realpolitik; diplomacy and nationalism do not name this strategy.

AI-written and checked against the verified answer.