Azai (浅井) is a faction in the Sengoku BASARA series.
When encountering them, you must liberate 4 sides of the map, defeating enemies like the legendary Gohonyari.
In Anime Edit
Azai Army was almost decimated when Oda and Akechi armies attacked them while they were busy fighting the Date.
The remnants later appear when the armies attack Azuchi Castle, but some of them are mown down by Oda's arquebus corps.