HistoryGeek2019 wrote:All of Hitler's success owes to him getting lucky in Fall Gelb. If the French take the defense of the Ardennes a little more seriously, or cut off the exposed panzer divisions, then Germany loses the war in the summer of 1940.
This is an alibi given by many (e.g. Tooze) for the failure to stop Hitler. Yes, the Mannstein plan was brilliant and Hitler was in some sense lucky to have had Manstein (though Hitler deserves credit for elevating Manstein's plan over Halder's).
But historians rarely ask what the likely alternative was. In my view, Manstein only saved France a few more months of doomed bleeding - losses that wouldn't have materially changed the course of the war.
Look at the fundamentals of the Battle of France. Yes it's true that the Allies had rough numerical parity with the Westheer on May 10 but only if you include the Dutch and Belgians, which were never going to endure a German offensive for long. The British, meanwhile, supplied <10% of Allied ground forces.
So you have nearly a one-on-one Germany v. France after the predictable overrunning of the Low Countries.
Germany v. France was a mismatch in 1871 and 1914; it had only gotten worse since: Germany had ~twice France's population and economy in 1940.
France narrowed the deployed forces gap by calling up nearly all men age 20-45; we all know that older soldiers don't perform as well in war (and most of us who've played sports in our 30's or later can see why).
The Allies should have known that mere - and predictably temporary - numerical parity was insufficient to check Germany, whose soldiers outperformed theirs in WW1 per man.
Given the imbalance of potential and actual forces deployed, France surviving into 1941 would have been as anomalous as her 6-week defeat. Even absent the giant OTL Kesselschlacht, the Allies were operationally outmatched by the German concentration of its combined-arms forces at the Schwerpunkt. Whether at the Ardennes or elsewhere, there's no feasible ATL in which the Allies stop a Panzer Group from breaking through (absent something like knowing the German plans months in advance, allowing sufficient anti-tank defenses to be concentrated a la Kursk). Breakthrough means either retreat or encirclement; if it had been the former instead of the latter Paris would merely have fallen a few months later.
It confounds me that historiography views the German defeat as inevitable given the Allies' preponderance of resources and population, but views French defeat as anomalous despite a similar preponderance arrayed against the poor French. The wealth of the UK informs this historical misjudgment; that ignores how little difference the UK made in the Battle of France.
Germany nearly beat France and the UK in 1918 despite having bled out against Russia and despite the arrival of American troops. That the Allies would be confident of victory with no second front is daft; that they expected France even to survive with the UK fielding fewer men than Belgium is flat-out delusional. On the part of the British, I'd lean towards a functional cynicism over delusion.
Hitler's strategic moves and judgment over 1936-39 put Germany in position to win successive and mostly one-on-one fights against enemies she could defeat singly but not all at once. This was strategic daring and political insight of world-historical order. That Hitler blew his shot by not taking the SU seriously doesn't diminish the unique character of his success up to then.
To rehash an argument I've made elsewhere in a now-locked thread, France's only chance was to unite with the SU and/or for the UK to commit itself to the bloody land war required to defeat Hitler. Britain declined to do either, refusing to back Stalin's push for coalition and refusing to build up its land armies. Just as in WW1, the British pulled the European strings towards the war it wanted without any deep commitment to bleed in that war. Here again Britain got what, ultimately, it wanted: the defeat of Hitler without losing millions of men to him. If one asked Churchill on his death bed whether he'd have traded a million more British lives to stop Hitler in Northern France in 1940, he'd almost certainly have said no.