The Polish Campaign: Results and German Lessons Learned

Germany conquered its half of Poland in 36 days. It took almost 700,000 prisoners and inflicted over 100,000 casualties in killed, wounded and missing on the Poles. The vast quantity of captured military equipment and ammunition(e.g. over 3000 artillery pieces and 16,500 machine guns), while not suitable for use by the Wehrmacht, could be used to help equip Germany’s minor allies later in the war. By contrast German personnel losses were relatively light – a total of 40,000 including 8,000 dead. Among the 22.5 million Poles in the German occupied territory were 750,000 ethnic Germans and some ethnic minorities prepared to work against the Soviet Union e.g. Ukrainians. However, the overwhelming bulk of the population was hostile and would require an occupation force.

German equipment losses were serious and illustrated the enormous strain of building and maintaining the equipment necessary for mechanized warfare. The Germans lost over 200 tanks and over 400 aircraft. More extensive still were the deferred maintenance issues and outright mechanical breakdowns associated with the demands of combat, poor roads and maintenance and repair resources that lagged far behind the rapid advance of the mechanized ground forces and aircraft operating off of improvised airfields near the front. Many German units were virtually immobile by the end of the campaign.These issues would increase with longer campaigns and tougher opposition.

As was their custom, the Germans reviewed their operations for possible improvements with an intelligent and critical eye worthy of a better cause. They certainly had reason to be satisfied. Their armored forces had overcome earlier operational issues under combat conditions and restored the war of movement the Germans had always preferred to fight, removing the threat of world war I style trench deadlock. German artillery was highly effective. The Luftwaffe had gained air superiority and successfully attacked Polish strong points, troop movements and supply columns on a large scale.

On a more detailed level however the Germans found room for improvement. Tank and motorized units were employed conservatively and cautiously by later standards. Advocates of more aggressive armored tactics were able to build on lessons learned in Poland for later campaigns including France and Russia. The lighter German tanks were found to be useful only for reconnaissance if at all. In the future production of the heavier types would be emphasized even at the expense of the total number of tanks in a division. The mg 34 machine gun was found to be vulnerable to jamming under eastern European conditions. Research was accelerated resulting in the faster development of the more reliable and faster firing mg 42.

The Germans found that their light divisions were, well, too light for sustained combat operations. They were upgraded to Panzer divisions. On the other end of the spectrum, the motorized divisions were too hard to maneuver and control with three motorized infantry regiments. They were each reduced by one such regiment.

There were additional small improvements in battlefield communications and infantry equipment. The Germans also took note of the effective use by the Poles of night attacks and guerrilla activity in rear areas. They stressed night attacks and the combat capabilities of supply column personnel in improved training methods. One area where they learned little was camouflage discipline against air attack. That would come later as the Germans faced increasingly effective air opposition.

Much of the information from this essay is drawn from “The German Campaign in Poland (1939)” the book length Department of the Army Pamphlet No. 20-255 by Robert M. Kennedy which despite being published in 1956 remains a valuable source on the campaign and is packed with the kind of detail on numbers, organization, equipment and order of battle that gladdens a war game designer’s heart.

You can read it online here .

Resources

While Chiang Kai-shek ponders his next move and the Japanese move troops let me pause in the chronology to point you to the first of what I hope will be many useful World War II resources on the net that I intend to link to here. Professor Steve Schoenherr’s chronology of the war is here . Be sure and check out his extensive links page as well.