These flares are part of a family of advanced IR decoy flares designed for use by Army aircraft and helicopters to meet advanced threats in current and future operational environments. The M211 uses a special high surface area metal foil, which rapidly oxidizes when exposed to oxygen. When one of the flares is dispensed from the host aircraft, the special pyrophoric alloy material payload reacts with air to emit intense IR radiation that is not visible to the naked eye. The IR radiation diverts heat-seeking missiles away from the aircraft. When used together, the M212, a spectrally matched flare and the M206, a magnesium Teflon flare, provide protection against a wide range of surface to air threats.