Particularly up until the establishment of the Triple Entente in 1907,
a great power war between Britain on the one side and either a
coalition of Russia and France, or one of the two individually, was
within the realm of plausibility. Africa and the oceans would have
been the main theaters of Anglo-French conflict, and Asia would have
been the main theater of Anglo-Russian conflict.
In a war with Russia and/or France, would it have been at all
plausible or probable that
military circumstances could lead to Britain losing:
908,400 military KIA
2,090,250 wounded
31,000 civilian casualties
$60 billion expenditure
...or more
In a war with Britain, would it have been at all plausible or probable
for Russian losses to equal or exceed these figures:
1,700,000 military KIA
5,000,000 wounded
2,000,000 civilian casualties
$26 billion expenditure
In a war with Britain, would it have been at all plausible or probable
for French losses to equal or exceed these figures:
1,358,000 military KIA
4,350,000 wounded
40,000 civilian casualties
$49 billion expenditure