neutralize - verb

• make politically neutral and thus inoffensive
• make ineffective by counterbalancing the effect of
• oppose and mitigate the effects of by contrary actions
• get rid of (someone who may be a threat) by killing
• make incapable of military action
• make chemically neutral

neutralize - thesaurus

counteract   counterbalance   countervail   liquidate   negate   neutralise   nullify   waste