Who was called the Iron Chancellor?

A hundred years ago, Germany was divided into many small states, or countries. In one of these states, Prussia, the chancellor, or chief minister to the king, was Otto von Bismarck. A strong and ruthless man, Bismarck made Prussia the strongest of all German states and its army feared throughout Europe. When the states were gathered into one empire in 1871, Bismarck, now a prince, and his king, now an emperor, were at its helm. Prince Bismarck continued to make the new empire stronger until he was dismissed by a new emperor in 1890. He got his nickname, ‘The Iron Chancellor’, when he said that Germany could only become a great power through blood and iron.