France is toast. Not literally toast since this
is not a nuclear era, but it is pretty much a
repeat of the Franco-Prussian war.
It is hard to say exactly how Russia would
get out of the war but it would be soon.
Tsar Nicholas II would probably no longer
be a pacifist as a result of demands for
concessions from Germany and Austria
and he would probably not be overthrown
either in that decade or the next.
If the Serbians manage to organize
rapidly enough, the Austrians and
Germans get their noses kicked in
in the Balkans, but they will probably
overwhelm them with numbers.
Net result - Germany gets some
of France's overseas colonies but
gets very little in the way of reparations.
Austria decides not to annex Serbia
due to the rather severe resistance.
The Ottoman Empire remains intact
and it is difficult to say how or when
it might disintegrate.
It will be a short war, that will
definitely be over before 22nd
June, 1915, and any conflict
in Ireland at that time will be
thought of as a separate and
different from the not-World,
not-War-to-end-all-wars.