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