For WWI you failed to mention the USA, Italy, Japan, and Russia. In terms of the level of fight in them, which is what I believe we are talking about, the 3rd Republic French of WWI had plenty of it.
The distinction is not absolute. The Normans had been in France as settlers (by agreement with Charles the Simple, or Straightforward) for some time by 1066.
Uh, incredibly disagree. French military supplies and $$$ kept the Colonies afloat long after exhaustion without their help would have brought the Americans to heel (probably after the 1776 campaign). The fact that the French didn't do more was because they couldn't, not because they didn't try.
While the British faced a real possible of invasion, risked an Irish revolt, found themselves locked into a heavily fortified New York City that could not be exploited, had Cornwallis running all over the American Southern interior with little support, the French and Spanish fleets sortied and free to operate, Gibraltar under siege, Florida falling to the Spaniards, African colonies being lost, India at risk to an unusually aggressive French admiral, the British had obsessed from Day One to Day Last (meaning Yorktown) on maintaining the blockade of the 13 Colonies and destroying supplies in the West Indies destined for Washington's Army.
For a WWII example, its kind of like a strategy of building an Atlantic Wall on steroids and leaving the Luftwaffe plus security and static divisions to cover the whole of the Eastern Front.
The RW Americans were not about to be landing in Southampton. But the Franco-Spaniards were stopped only by disease, and that not even Lord North was stupid and arrogant enough to abandon Southern England coastal fortifications and send the English Militia to deal with troublesome Irish.
1) And...?
2) And...?
3) The woman who reduced the English to beef-eating surrender monkeys
4) The war that produced the Black Prince and Henry V also produced Charles the Wise, Joan, and Charles VII
5) The Royal Navy didn't fight WWI on the high seas by itself
Shame on me

for missing the thousand pound gorilla in the room...Revolutionary and Napoleonic France. YES, they lost in the end. But it took a full generation to run the French to ground, and mainly on the basis of one man's megalomania of never being able to say "enough", and his enemies' skills (after 1808) at finally learning how to exploit that fact. Imagine what we'd have to say about the Imperial Germans if they had conquered BOTH France and Russia and WWI had lasted in one form or another until 1939!