Here is the challenge - what if after armistice day 1918, Britain decides on and sticks w/ a policy of lockstep cooperation with France on European, indeed global affairs.
It does this, instead of its nearly opposite, OTL policy of running away from commitments to France as much as possible, and always urging France to tone down its commitment to the letter of the Versailles treaty and the precise European territorial status quo set up by Versailles, St. Germain, Trianon, Neuilly & Riga.
Of course, by mid-1939, Britain was back to realignment with France, but the time away from that alignment was costly, and gave the Nazis room to make free gains.
In other words, Britain is consistent with its wartime alliance with France, and its prewar policy toward France since the Entente Cordiale, generally siding with France on international questions.
I'm inspired to start this thread after reviewing threads I started on what *France* could have done post Versailles, or during Versailles, to sustain a more secure position for itself in the decades after 1919 (you know, a future, not leading to the debacle of 1940).
These discussions were had on multiple forums here:
What's the best deal France can make and take at Versailles?
AHC – France sustains its post-Versailles security order for 44 years
AHC – France sustains its post-Versailles security order for 44 years
What's the best deal France can make and take at Versailles?
AHC – France sustains its post-Versailles security order for 44 years
A big conclusion from the discussions was that France *tried* hard to avoid the fate of 1940, but didn't have the weight/strength to do it without British support. The French largely knew this, which was why they were always checking for British approval before standing up for themselves, or anyone else in Europe, against Germany, but the British never gave France approval to stand up against Germany until the spring of 1939.
In those discussions I took British non-cooperation as an unchangeable, mindless force of nature, that France just had to deal with and couldn't do anything to affect.
But here, I am asking if we can plausibly get British leaders, elites, people to walk away from the end of WWI and the armistice with a different set of preferences and lessons, and decide that France is *the* vital partner, strategy has to be co-developed with France, and if France needs support for encircling or containing Germany, it should get it.
In hindsight, the logic of 'stick with France through thick and thin' is pretty good. Who else can Britain stick with? Russia is revolutionary and unavailable. America is too aloof. Japan is too distant to make the big difference in Europe, and America is strong-arming Britain into cutting the alliance anyway. Germany? Germany has some bitterness against Britain and Britain sits on some German old property. Italy - too little strength north of the Alps. The idea, to the extent that British policymakers ever entertained it after WWI, that France was now now *too strong* on the continent and would over-dominate it in league Central European allies like Poland (despite poor Relations with both Germany and Soviet Russia) seems a gross over-estimate of France's ability to domineer and become a menace, especially in hindsight. In retrospect, what Britain and France would have achieved working together was not a new Napoleonic order in Europe, but basically just enough force to hold on to the European status quo by denying Germany and Italy the maneuvering room and oxygen to do wars of conquest through the 1940s.
How could British leaders/government come to this conclusion, implement this policy, what costs would they pay, and what would the results be through the 1940s and beyond?