This might be off topic a bit but I still think its related. I was playing the GB campaign so naturally I was at war with France and Spain, its about 1785 and France never crossed the channel despite England being sparsely defended, but ok this was to be expected but all the sudden a huge stack of mostly heavy ships shows up of the cost of Whales and its containing a full stack army, for a moment I thought I was in big trouble as all my navies and armies were off all over the globe fightng colonial wars and pirates. I dreaded hittting the turn end button

So I put an army and navy quickly into production hoping that my few existing units combined with the couple of units created next turn could delay them till my Army came back from America to come to the rescue

Well rest assured the invasion never came. In fact the invasion army sat off the coast for for 2 or 3 years sitting in their ships. In that time I was able to raise a huge army at home, my Army from America showed up. I built a fleet of 8 2nd rates and a sloop to scout them out. I Fortified Whales with a series of forts. I sent my Army out right in front of the ship inhopes they would attack but no. Finally I just sunk the whole fleet and Army with my fleet of ships. Nice try AI……..i guess???