What is one classification of rounds designed for illumination purposes?

The designation for rounds specifically designed for illumination purposes is indeed illumination rounds. These rounds are utilized to produce a bright light to illuminate an area, allowing for better visibility during nighttime operations or in low-light conditions. They serve a critical role on the battlefield by enhancing situational awareness for ground troops and aiding in the targeting of enemy positions.

Illumination rounds are typically equipped with a parachute or other mechanisms that allow them to stay aloft for a duration, providing sustained light over an area. This capability is essential for commanders when conducting operations after sunset or in conditions where visibility is reduced. The use of these rounds helps in maintaining safety and effectiveness in military operations, as they ensure that troops can see potential threats and maneuver safely.

In contrast, other types of rounds serve different purposes: smoke/screening rounds are primarily used to create smoke screens for cover and concealment; high explosive rounds are designed for destruction and fragmentation effects; and training rounds are non-lethal rounds intended for practice scenarios. Each round has its own distinct function, but illumination rounds are uniquely categorized for their ability to provide light.