underused after 1900 pods

I'm aware, though I'm guessing that a clash between just Britain and Germany (even though alliances would probably come into play barring ASB intervention), likely to claim at least a few million lives as it is, would still fall quite far behind OTL World War One for sheer, continent-wide desecration and post-war hardship. Speaking of which, which ones would be most likely to go to war ITTL, and approximately when?

  If a war occurs in the next decade or so then I would expect it to be a large coalition war as OTL as the alliances and fears that drove them would very likely still be in place.  Unless someone has markedly superior leadership or possibly developed some sort of motorised war fare doctrine - which without OTL WWI seems unlikely - its likely to be long and bloody.

  If a war is avoided for a decade or more then things could change depending on developments, chiefly in Russia, Austria-Hungary and Turkey as to how those autocratic states fare.  If Russia doesn't stumble then its apparent growth and especially its demographic growth might prompt a changing of alliances as other powers, especially Britain become more concerned with Russia than Germany, although this would of course depend on how great a threat Germany appeared, both in terms of its navy and its intentions in Europe.  Germany itself might see changes, either becoming even more dominant economically in Europe or seeing social tension as the general population and the aristocracy struggle for primary.  Also of course what happens in Britain, France and possibly fringe powers such as the US and Japan.  Basically there are so many variables a lot could happen.

  However given continued national tension, perversions of Darwin's ideas and the relative shortness and lack of bloodshed of the previous cycle of wars - chiefly Bismarck's wars to unify Germany under Prussia - are likely to mean too many leaders and people are going to think of war as a relatively easy option and also something 'necessary'.  As such I would expect some probably big conflict at some point.