According to the war ethics that
Islam upholds a Muslim state should wage war against the combatants among
the enemy only. They have no right to target innocent civilians during a
war. Consequently, weapons which cause mass destruction must never be used
because they result in the death of civilians.
Keeping such weapons as deterrents should
also be avoided because as part of wartime ethics, it should be a declared
policy of Muslim states that come what may, they would never use weapons
which kill civilians.