Which type of ammunition is known for its incendiary properties?

White Phosphorus (WP) is known for its incendiary properties due to its ability to ignite and burn upon contact with air. When WP is exposed to oxygen, it produces a bright white flame and emits dense white smoke. Its incendiary characteristics make it effective not only for creating smoke screens but also for inflicting thermal burns and igniting fires, which is a critical functionality in certain military operations.

In contrast, High Explosive (HE) ammunition is designed primarily for explosive power rather than incendiary effects. Red Phosphorus (RP) has different applications and does not have the same incendiary characteristics as WP. Illumination rounds are focused on producing light rather than incendiary effects. Thus, WP stands out as the type of ammunition specifically recognized for its incendiary properties.