Country tag for Ireland is:
IRE
If you want play for Ireland HOI4 you could use tag command:
tag IRE
To annex Ireland in HOI4 you could use annex command:
annex IRE
To delete all Ireland units you could use deleteallunits command:
deleteallunits IRE
To add interests on Ireland you could use add_interest command:
add_interest IRE
To remove interests on Ireland you could use remove_interest command:
remove_interest IRE
To start occupation on Ireland you could use occupationpaint command:
occupationpaint IRE
More country tags for HOI4 or more cheats for Hearts of Iron IV