Kintostown was more or less neutral in the war with the Southern Alliance until Kintotech Castle was destroyed. Kintostown was particularly known for its Clank based defensive force.
It remained neutral primarily because of its location at the boarder of the Southern Alliance of Sparks' territory, and the Heterodyne/Wulfenbach territory.
Now, however, with the castle's destruction, KintoClanks are turning up as allies of the Southern Alliance. Reprogrammed? Stolen?
Hard to say, given that Doctor Julian Kintotech was killed in the destruction of the castle, noone's seen his son (the rightful heir), and Bella continues to make her presence known as someone who fights to keep people alive in the middle of this war.
Of course, with people equating the KintoClanks to the House of Kintotech choosing the Southern Alliance's side, this doesn't really mean that our dear Bella is popular, since her mechanical arm rather obviously displays her house's symbol.