That will provide you with the country ID. If you need to know the tag of the country ingame, you can Hit tilde, type the command tdebug, and then mouse over one of the provinces of the target country. The tag is D#, with the # replaced by ascending numbers based on when the nation was created. For example, the first nation created after the game begins will have the tag D01. For nations that begin after the start of the game, a new tag is assigned. Most of the tags correspond closely to the name of the country. But to use these console cheats that affect entire countries, you’ll need to know the country tag. HOI4 County Tags come in handy when you are using console commands in Hearts of Iron 4.