procedures involved in taking defensive measures against attacks using chemical agents
relating to or used in chemistry
material produced by or used in a reaction involving changes in atoms or molecules
a structure used to defend against attack
the justification for some act or belief
an organization of defenders that provides resistance against attack
(military) military action or resources protecting a country against potential enemies
the speech act of answering an attack on your assertions
the act of defending someone or something against attack or injury
