Military

Armiger

Armiger (person entitled to a coat of arms)

Armistice

Armorer

Armorer: duties, skills, history and distinctions

Armour

Arms trafficking

Arms trafficking (gun‑running): causes, methods and international responses

Army

Army of Mississippi

Army of Mississippi (Confederate)

Army of Northern Virginia

Army of Tennessee

Army of Tennessee (Confederate)

Army of the Cumberland

Army of the Mississippi

Army of the Potomac

Army of the Tennessee

Army of the Tennessee — Union field army in the Western Theater

Army ranks and insignia of the Russian Federation

Arsenal

Artillery of Japan

Arunachal Dragon Force

AS-90

AS-90: British 155 mm self-propelled gun

Ashigaru

Ashigaru — Japanese foot soldiers from Heian through the Edo period

Assault rifle

Assault rifle: definition, history, characteristics, and global impact

Atlanta Campaign

Atlanta Campaign (1864): Sherman's Advance and the Fall of Atlanta

Atlantic Wall

Atlas (missile)

Attack aircraft

Attrition warfare

Attrition warfare: strategy of wearing down an opponent

Australian Defence Force

Authorization for Use of Military Force Against Terrorists

Authorization for Use of Military Force Against Terrorists (2001)

Automatic rifle

Avro 683 Lancaster

Axis powers

Axis Powers — Germany, Italy and Japan in World War II

Azerbaijani Air Force

Azerbaijani Air and Air Defence Force

Azerbaijani Armed Forces

Azerbaijani Armed Forces: structure, history, and role

Azerbaijani Land Force

Azerbaijani National Guard

Azerbaijani National Guard (Azərbaycan Milli Qvardiyası)

Azerbaijani Navy

Balkan Wars

Balkan Wars (1912–1913)

Ballista

Ballista: ancient torsion artillery and its role in siege warfare

Ballistic trauma

Ballistic trauma (gunshot wounds): causes, effects and management

Bangladesh Liberation War

Barracks

Barrel (weapons)

Battalion

Battalion (military unit)

A battalion is a mid-sized military formation—typically several hundred to around a thousand personnel—composed of multiple companies and able to operate independently within a lar

Battering ram

Battering ram: siege weapon for breaking walls and gates

Battle

Battle of Aachen

Battle of Antietam

Battle of Arras (1917)

Battle of Artemisium

Battle of Artemisium (480 BC)