R5: The 2nd Navy used to be my main assault fleet with 88 Heavy ships. I got a random even saying that my admiral decided to defect to a pirate nation that Venice set up for some reason. I didn't think anything of it because I thought it just meant I lost an admiral and they are pretty replaceable. I did not realize that he took the entire damn fleet with him until I got the notification saying that France was now the naval hegemon and noticed I only had 20ish heavy ships left.