I agree - no WWI will prevent the losses of human live (all participants), but France suffered most (probably) because most battles on the western front were fought on French soil.
But France will alos NOT have A-L back ITTL.
So France will be better off than OTL, but that is true for ALL nations (except the US maybe). So it will fall back in relative power at compared to Germany (which lost more at the conclusion of WWI) RFrance is first among the seconds, but still no longer among the first in the world..
Seconded.
Without the 'lost generation' France will have a substainally larger population, and a lot more economic clout to boot.
We also have to remember that from 1895 - 1920 the french were leading the world in artillery development and modern battle doctrine, while the UK was still struggling to understand the implication of the machingun, and Imperial Germany was more intested in large calibre railguns as siege artillery and raw firepower, then developing mobile support assets.
Without the Great War, many lessons will simply not be learnt.
Chief among these are;
1. The Tank (in the form we are fammilar with)
2. The development of metal skinned aircraft
3. The development of road-towed artillery
4. The development of road-worthy gun carriages
5. The outlawing of chemical weapons
6. The tactical role that the machingun brings to warfare
7. The strategic notion of a national arsenal
8. The benifits in first aid/medical care from the Great War
9. The notion that modern wars are incredibly distructive and can still be won for great victory.
These lessons greatly altered the events during the interbellium, and without the Great War would have led to a totally different millitary development throughout the 1910s and 1920s.
A key aspect is the tank, while it is arguable the idea would exsit without the Great War, of an armoured vehicle, the concept of tracked mobility for the broken terrain of no-mans-land wouldn't. Thus we would more likely see Armoured Car development turn into APC development, and by the 1940s we might be seeing small elements within armed forces sporting mechanized support.
This changes the total notion of landwarfare, because it would still be infantry armies slugging it out, because mechanised units in that sense would have likely never been developed for direct attack roles, as the support element is the obvious development role. Hence forget blitzkrieg. Forget your 'landships', the 1940s armed forces migh more resemble modern caverly forces with 'Striker-esque' vehicles.
Without the Great War, artillery development will be greatly hampered, particularly in respect to developing carriages designed to move mobile guns. Thus the artillery may stay as an infantry hauled weapon. With that line of thoiught, you won't be able to get the 'fluid battlefield' doctrines developing. Armies still thinking that they will meet the enemy on the field and deploy, then attack. Still a very static way of thinking. These two notions would greatly increase that any European war would be a trench war still.
Chemical weapons, not being outlawed, could be of the very deadly types to be found exsiting during the 1940s, with nerve agendts wars could get messy fast.
I'm sure you can reason out for yourself what a lack of a Great War
might entail....