The third brother, a military adviser, said: the difference between a cannon and a howitzer.

Gun refers to the gun with long barrel, small launching elevation, low trajectory, direct fire and high muzzle velocity, which is often used in the tough battle of the former enemy. Anti-tank guns, tank guns, anti-aircraft guns, aviation guns, naval guns and coastal guns are also cannons.

Howitzer is a kind of field gun with short barrel and curved trajectory, which is suitable for attacking hidden targets and ground targets. Howitzer can carry incendiary bombs, grenades, shrapnel, armor-piercing bombs, missiles, extended-range bombs, flares, smoke bombs, propaganda bombs and other ammunition, and implement large-depth fire maneuver by changing the trajectory through disguised charging.

Reflected in the tactical characteristics, the length of the barrel is usually fixed ammunition, the projectile has high muzzle velocity, its range is mainly adjusted by high and low shooting angles, the trajectory is low, and it basically hits the target horizontally, which is suitable for shooting vertical fixed objects. Howitzer, on the other hand, generally has a variety of charges, sub-package warheads, mainly rely on the launch angle and charge label to adjust the range, basically hitting the target vertically, suitable for shooting obstacles, people and so on.