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