[https://i.imgur.com/CWvpnGL.jpg]
I'm using the map off the wiki, which like every other source I'm gleaning off it I'm assuming is canon.
* The darkened regions on the northwest of the Earth Kingdom continent is the canon territories of the Fire Nation colonies.
* The red line is the border expanded by the 11th Royal Regiment, and later the Northern Pacification Army. That purple dot in the small bulge in the north is the city of Chenbao.
* The green line is the eastern push that was converted from the Fire Lord's disastrous southern campaign.
* The blue line is the 11th Royal Regiment's recent drive south. The purple dot down there is Omashu.