| A | B |
|---|
| ADVANCE— | The forward movement of a unit toward the enemy. |
| BULLET— | The projectile of a small-arms cartridge that is discharged from a weapon toward a target. |
| CHAMBER— | The enlarged part of the bore at the breech that holds the cartridge. |
| EROSION— | The wearing away of the inner surface of a gun barrel as a result of mechanical wear |
| FLANK— | The right or left extremity of a unit |
| GROUND ZERO— | The point on the ground or directly above at which a nuclear weapon has exploded. |
| FORMATION— | Arrangement of the elements of a unit in line, in column, or in any other prescribed manner. |
| LOADING— | The manual procedure of inserting a magazine, clip, belt, or single round into a weapon |
| MALFUNCTION— | The failure of a weapon to function satisfactorily. |
| MUZZLE— | The front or forward end of the barrel; the mouth of the barrel. |
| RANK— | A line of men or vehicles placed side by side or an officer’s grade or position |
| REVOLUTION— | A rebellion that succeeds in overthrowing an old government and establishing a new one. |
| ROADBLOCK— | A barrier or obstacle to block or limit the movement of hostile vehicles along a road. |
| SECTOR— | A clearly defined area that a given unit protects or covers with fire. |
| WITHDRAWL | Disengaging from the enemy under command |
