Which round is classified as white phosphorus?

The classification of white phosphorus rounds is significant in military operations due to their unique characteristics and uses, particularly in marking, obscuring, and incendiary functions. The M722 is the round that is classified specifically as white phosphorus.

White phosphorus is known for its ability to produce a dense white smoke and its incendiary properties, which can be utilized for signaling, screening, or creating obscuration on the battlefield. The M722 round is designed to deliver this material in a controlled manner, thus serving specific tactical purposes during operations.

On the other hand, while other rounds like the M720, M721, and M769 serve important roles in various artillery applications, they do not contain white phosphorus and have different compositions and functions, such as high explosive or training purposes. Understanding the classification of these rounds helps in effective decision-making in combat scenarios, highlighting the importance of the M722 for operations that require the unique properties of white phosphorus.