defeat soundly; "The home team demolished the visitors"
means pull, break down, demolish, make useless, kill, cause to cease to exist.
Inflict catastrophic injury to the enemy functions and systems to render these useless. This action is permanent. The enemy would be required to totally replace entire systems, facilities, and hardware to regain his operational status.
Sufficient injury to render property useless for the purpose that it was intended, not necessarily amounting to complete demolition or annihilation.