Focused Fire (ATLA)

The rise of a young Fire Nation commander Xing, a survivor of a village attack-turned prodigious firebending colonel of the Fire Nation's 11th Regiment. Taking place not long before canon, Xing seeks to keep his adoptive family in the Fire Nation military as safe, sound, and sharp as he can, even as the pieces of the puzzle that is the main story start to fall in place around him, the biggest of which is Princess Azula joining the 11th in their military duties around the Earth Kingdom.