Ironically enough, so did Hitler. In between the invasion of Poland and the invasion of France, he allocated an enormous fraction (around 40%) of Germany’s war materiel production to artillery shells - the primary weapon of WWI and the fundamental limiting resource for both sides during that war. Hitler expected a reboot of the prior war, with Germany holding off the Western allies with a small portion of their armies on the defensive while carving off huge swaths of Russian territory. He was as surprised as anybody by the rapid collapse of France - and was left holding a gigantic surplus of artillery shells.
Ironically enough, so did Hitler. In between the invasion of Poland and the invasion of France, he allocated an enormous fraction (around 40%) of Germany’s war materiel production to artillery shells - the primary weapon of WWI and the fundamental limiting resource for both sides during that war. Hitler expected a reboot of the prior war, with Germany holding off the Western allies with a small portion of their armies on the defensive while carving off huge swaths of Russian territory. He was as surprised as anybody by the rapid collapse of France - and was left holding a gigantic surplus of artillery shells.