The rail network that the Prussians built in the second half of the nineteenth century was probably the most significant factor in their smashing victory agains

The rail network that the Prussians built in the second half of the nineteenth century was probably the most significant factor in their smashing victory against France in 1870. So if the incentive is military (and sadly the Ukrainian Russian war is a reminder that war can happen even not too far away from Germany) Germany has proved its worth in making a dense railway network, possibly more costly than the French one, but very effective once built.