Answer:
Constructed vast networks of railroads.
Explanation:
After German unification took place in 1871, an active policy of building railroads and connecting cities had begun.
Prussia began to nationalize railways and in an effort to promote rapid economic growth. This stimulated the creating of national enterprises
The heavy trains crossed the Ruhr region, which became an industrial centre and some cities like Hamburg and Bremen added for around 10 000 trains each year. Since Prussia had the largest military, also the army began to be quickly mobilized through the use of the trains. The introduction of armies in trains was also a main innovation by that time.
The German trains became characteristic of this country and perhaps the vast networks of railroads accounted to be the first motor in developing Germany into a modern nation to compete with Britain and France.
