User blog comment:IndigoOnIceCream/What if France won the Franco-Prussian War?/@comment-4656717-20120519053229/@comment-32656-20120519222245

Britain did not become friends with the French until decades after this war otl - and here, unlike otl, the French will be the strongest power in Europe itself. British doctrine then means they will not support them. Add to that that even otl, the Brits and Germans were "closer" than the French were to the Brits, if you remove the naval issue. Basically, the French and British (and the Brits and Russians) were in conflict colonially for many years after the war otl.

Both Russia and Austria have reason to ally with the French - and they both hate the Ottomans. Nor do they have much reason to fight between themselves.