Everything is arising and falling!! 

Buddha beautifully puts it. 

The seeds of violence sown in past by other group led to present day violence.

This present day violence is already sown strongly to reap back as future violence by another group.

Matter of time when things quickly change!

Never ending loop! 

Eye for eye whole world goes blind!

What goes up should come down in this nature till brahmaloka!

Every idiot in this world who goes up always thinks he will stay up forever, this basic blunder leads to excessive arrogance and mistakes unfold without mindful of consequences, this blunder is repeated again and again by humanity!