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