What is the filler for the M34 smoke grenade?

The filler for the M34 smoke grenade is white phosphorus. This substance is particularly effective for generating smoke because it burns when exposed to air, producing a dense, obscuring smoke. The use of white phosphorus allows the M34 grenade to effectively cover areas on the battlefield, create visual impediments for enemy forces, and provide concealment for troop movements. This characteristic makes it a valuable asset in various tactical scenarios.

While other substances like carbon dioxide, chlorobenzene, and sodium bicarbonate are used in different types of smoke generation or chemical applications, they do not serve the same purpose or provide the same effectiveness as white phosphorus in the context of the M34 smoke grenade.