IT'S A WAR, DUMBASS: You don't 'manage' an enemy; you destroy it.

Dictionary.com: destroy.

1. to reduce (an object) to useless fragments, a useless form, or remains, as by rending, burning, or dissolving; injure beyond repair or renewal; demolish; ruin; annihilate.
2. to put an end to; extinguish.
3. to kill; slay.
4. to render ineffective or useless; nullify; neutralize; invalidate.
5. to defeat completely.

That is the meaning of 'war'.