What if there were more blockade runner subs in the first world war? Would increased trade have prevented American economy from being so one sided in favor of the entente? OTL there were actually plans to build blockade runners in American harbors. These could come true, either for the Germans or for American businessmen looking to trade with a blockaded nation. The blockade runners also offer an opportunity for tension between England and America, as the Americans could be proud of their defense of "free trade" and the British consider them to be violating maritime law. Could investment in blockade runners, on either side of the Atlantic, tip America from the entente to the central powers? Would it work with other factors to achieve it?
Also, here is an article about one of the "merchant submarines":
http://www.digplanet.com/wiki/German_submarine_Deutschland
Also, here is an article about one of the "merchant submarines":
http://www.digplanet.com/wiki/German_submarine_Deutschland