**Especially, if submarines are present in the opposing fleet and the ship can attack them, N is the number of submarines, else, N is the number of valid targets, which now excludes submarines (''see [[#Submarines|below]]), | **Especially, if submarines are present in the opposing fleet and the ship can attack them, N is the number of submarines, else, N is the number of valid targets, which now excludes submarines (''see [[#Submarines|below]]), |