Mandalorian Excision

This conflict between the Galactic Republic and the Mandalorians came about following a growth of Mandalorian technical growth and rising militancy that alarmed the Republic and its Jedi protectors. The Republic unleashed a preemptive strike, causing devastation across parts of the planet Mandalore, transforming large areas into barren deserts of white sand. From the ashes of the conflict rose the New Mandalorians, a peaceful faction of Mandalorians who rejected the warrior ways of Mandalore's past and embraced pacifism.

War
In the years following the fateful Seventh Battle of Ruusan, a large number of the Mandalorians chose to reinvent themselves as a more rigid society, favoring technical aptitude and started down a course of growing militancy. The Galactic Republic and its guardians, the Kights of the Jedi Order, so fresh from the destructive war with the Sith, grew alarmed at the Mandalorians show of militancy. In order to avoid a second Mandalorian War, the Jedi and the Republic launched a preemptive strike on the Mandalore sector in 730 BBY. A short and targeted war, the conflict between the Mandalorians and the Republic brought devastation to the planet Mandalore; portions of the world were transformed into barren expanses of white-sand deserts.

Aftermath
"Mandalore's violent past is behind us."

- Prime Minister Almec of the New Mandalorians

In the wake of the destruction the Republic wreaked, a group of Mandalorians chose to undergo a new social transformation. Doing away with many of the old warrior codes the Mandalorians had historically followed, the self-proclaimed "New Mandalorians" put forward the idea that the best opportunity for Mandalorian survival and prosperity would come through being peaceful, neutral, and tolerant. Constructing cube cities in the expansive deserts, the New Mandalorians used their talents as inventors and building to form a new civilization, taking the black-domed city of Sundari as their capital on Mandalore.