if you tied off a few boats in a line and said it was a navy you wouldn't be wrong.. navies are the ships that you navigate.. the people on those ships are sailors.. they sail on the ship. you understand that? .. there's no navy that you join.. that's ridiculous.. you become a sailor on a ship.. that ship and the others together are a navy; with or without you, the sailor.. i mean jesus christ you want to be a sailor? what the hell? be a US Army soldier.