When the moons landed on the ground, it would release the locked up Heavenly Dao within, causing the Heavenly Dao in that area to increase in density.
The subsequent war between the myriad races to control that area was only natural, but was still tragic.
After all, whoever gained control of the area would rule over the other races in the region. It was the best opportunity to fight for power and change the status of their race.
If any race still remained doubtful and hesitant about this matter, then they would pay the price when the final victor came knocking at their door. As such, rather than wait for that eventuality, everyone put everything on the line.
In any case, in this cruel world, if their race wanted to gain respect, they had to do so with strength. Words meant nothing.