What is a common characteristic of all mortars referenced?

Mortars are classified as indirect fire weapons, which distinguishes them from direct fire weapons like rifles or machine guns. This characteristic allows mortars to fire projectiles at high angles, enabling them to strike targets that may be obscured by obstacles like terrain or buildings. In an indirect firing scenario, the mortar crew often relies on coordination and calculation to adjust their aim based on the target's location, rather than directly seeing the target.

The nature of indirect fire is particularly useful in combat situations where direct lines of sight are not available, making mortars versatile and effective for supporting infantry units. This capability enhances their tactical value on the battlefield, allowing them to provide artillery support effectively and efficiently from a distance.

In contrast, the single firing method, airborne capabilities, and guided munitions do not universally apply to all mortars. Mortars can have various fusing methods and deployment strategies, but the defining characteristic among them is their role as indirect fire weapons.