The point is that you can't just suddenly have the French do the thing they allowed Munich to happen. And still have Munich happen.
If France managed to gather courage for this in 1939, then they would also most likely have been more decisive in 1938 and Munich never happens, Hitler is deposed by the Heer and WW2 is averted. Germany goes on to default, inflation, civil unrest, civil war, authoritarian military regime rules to 1960's, free elections, convergence to OTL.
The point is that you can't just suddenly have the French do the thing they allowed Munich to happen. And still have Munich happen.
It's a bit disingenious to blame Munich on the French as they, as always in the 30s, followed the british diplomatic lead. Averting Munich is not a matter of French 'gathering courage'; either the british do so or the french have to break from the british diplomatically. The only way for either to occur is for the political and military leadership to believe they can stand up to Germany in 38 (they could, but due to German propaganda, they didn't think so). So you have to have either franco/british rearmament starting earlier or their intelligence and military leadership apparatus not taken in by German propaganda.
The POD is that Daladier is removed as Prime Minister after Hitler reneges on the Munich Agreement and annexes Czech. Daladier is replaced by Paul Reynaud, a much more decisive leader who was awake to the true threat of Germany very quickly, within a few months he replaces the hapless Gamelin as Army chief, and France is prepared to invade Germany in the first few days (Separately Poland mobilises earlier as well, slowing the German advance slightly compared to OTL). In OTL he became PM a month before the Fall of France, in my scenario he becomes PM a year earlier.
Check books on the topic. Now we even have the official letters. Basically French said "we go if you go". Brits said "ok, let's check with the military". Theu told them "ok, 250 planes no more, two divisions, no more". At the same time French would have had to deploy at least 1000 planes, mobilize and deploy no less than 60-80 divisions. The French answer was "you're kidding me, we're allies but who's going to pay, to get the bombing and the dead soldiers?". Neither went...It's a bit disingenious to blame Munich on the French as they, as always in the 30s, followed the british diplomatic lead. Averting Munich is not a matter of French 'gathering courage'; either the british do so or the french have to break from the british diplomatically.
They would take weeks if not a month or two to prepare the attack on the Sigfried line. By that time it would be over for Poland.
Germany didn't technically annex Czech. It created the Protectorate of Bohemia and Moravia.I wrote an (incomplete) scenario on this in my signature, along with a novel based on the scenario. The novel is presently being re-edited for a second edition (no major plot changes, but the writing style needs improvement). The POD is that Daladier is removed as Prime Minister after Hitler reneges on the Munich Agreement and annexes Czech. Daladier is replaced by Paul Reynaud, a much more decisive leader who was awake to the true threat of Germany very quickly, within a few months he replaces the hapless Gamelin as Army chief, and France is prepared to invade Germany in the first few days (Separately Poland mobilises earlier as well, slowing the German advance slightly compared to OTL). In OTL he became PM a month before the Fall of France, in my scenario he becomes PM a year earlier.
Ultimately the scenario leads to the early defeat of Germany, with the Wehrmacht stepping in and restoring the constitutional monarchy.
I wrote an (incomplete) scenario on this in my signature, along with a novel based on the scenario. The novel is presently being re-edited for a second edition (no major plot changes, but the writing style needs improvement). The POD is that Daladier is removed as Prime Minister after Hitler reneges on the Munich Agreement and annexes Czech. Daladier is replaced by Paul Reynaud, a much more decisive leader who was awake to the true threat of Germany very quickly, within a few months he replaces the hapless Gamelin as Army chief, and France is prepared to invade Germany in the first few days (Separately Poland mobilises earlier as well, slowing the German advance slightly compared to OTL). In OTL he became PM a month before the Fall of France, in my scenario he becomes PM a year earlier.
Ultimately the scenario leads to the early defeat of Germany, with the Wehrmacht stepping in and restoring the constitutional monarchy.