Note that in neither WW1 nor WW2 did Germany fight on its
own. In WW1 it allied with the Austro-Hungarian Empire
and Turkey. In WW2 its allies included Italy, Rumania, Hungary
and Bulgaria

Care to name British allies including British colonies?

The Boers were rather fewer in number than Germans

Surely,but Brits proved to be hardly capable of dealing with a such opponent,in
spite of long and glorious colonial experience.
BTW wo were those Boers,an African.Indian or Arab tribe maybe?

Not to mention slavemasters


Weren't Greeks and Romans too slavemasters?