I have been playing this game of EU4 as Scotland for a long time now and have lost many ships to attrition, until I figured out what it was. Earlier in the game I had trained up a massive army to attack England but I didn't want to die so I just invaded some nearby regions, which turned out to be very easy. But now I have an army with nothing to do with which I would hate to dissolve. So I though I would attack the USA (whom I created), when I have a navy that can carry my army, but I cannot because of naval attrition. When transporting my army over the atlantic they will all surely die of attrition.
So my question is, is there any way of reducing naval attrition enough to transport 30 or more ships across the atlantic without too many losses? [PS: Don't try and give me advice on how to play the game, unless that advice is about attrition, I do not care how bad my nation might look.]