How would a war between Britain, Germany, and Italy on one side and France, Russia, and Austria-Hungary on the other develop?
Short answerBritain would blockade France and Russia while Germany and Italy attacked Austria-Hungary from opposite directions, leaving the latter unable to defend both fronts.
NotesThe Royal Navy would isolate France and sharply reduce Russian imports. Germany could attack south while Italy attacked north, placing Austria-Hungary between two allied armies. The Austro-Hungarian navy and army could fight well, but they could not defend both sides of the empire at once. Naval blockade and continental geography would reinforce each other.