Very understandable. There is an emptiness because it should have never come to this.
The last line of Chapter 31 Tao Te Ching sayings it right.
"Fine weapons are instruments of misfortune; all creatures fear them. In peace we favor creation; at war we favor destruction. Weapons are tools of misfortune, not the tools of the wise. The sage uses them only as the very last, with calm restraint. Victory is no cause for rejoicing; victory comes from killing.
If you enjoy killing, you can never be fulfilled. When victorious, celebrate as if at a funeral."
The last line of Chapter 31 Tao Te Ching sayings it right.
"Fine weapons are instruments of misfortune; all creatures fear them. In peace we favor creation; at war we favor destruction. Weapons are tools of misfortune, not the tools of the wise. The sage uses them only as the very last, with calm restraint. Victory is no cause for rejoicing; victory comes from killing. If you enjoy killing, you can never be fulfilled. When victorious, celebrate as if at a funeral."