What i didnt make clear was i meant if Germany defeated France then they would prbably get land concessions rather than some kind of German european imperium. As for those blockades i know there was U boat trouble but they were few in number, at least to mount an effective blockade. There were shortages but im pretty sure surrender was never on the cards. Not until the second world war atleast when things had changed. As for dreadnoughts being destroyed it would take something special for the germans to gain a dreadnought majority in the first world war.