The campaign treats diplomacy as part of fleet disposition rather than as a separate political minigame. Better relations with the United States, Austria-Hungary, and Italy are intended to deny Germany useful partners and limit the number of theatres Britain might have to cover. Avoiding simultaneous wars in the Mediterranean and Atlantic is the immediate goal. These are scenario choices rather than a claim that real alliances were mechanically controllable, but they show how diplomatic alignment changes where ships must be available.
Notable Point · 57:41-1:02:48
Diplomacy avoids simultaneous naval theatres
Relations with other powers are managed to isolate Germany and reduce the risk of wars in the Atlantic and Mediterranean at once.