1st Class or 2nd Class Control

angle Class Ⅱand skeletal class I malocclusion

Class Ⅰ and Class Ⅱ highways

Class A and class B infectious diseases

Class I and Class II

a ballistic missile defense

a clearance between the missile and launcher

A type of vehicular air-ground missile

A-A Missile

aerosol missile

air launched missile

air to air missile launching envelope

Airborne Missile Camp

airborne missile launcher

air-to-underwater missile

ant ship missile

Anti-ballistic missile

anti-ballistic missile (ABM)

Anti-Ballistic Missile agreement

antiballistic missile system