Solid fuel missiles are a type of missile that use solid propellant for propulsion. Unlike liquid fuel missiles, which require complex fueling systems, solid fuel missiles are easier to store and handle. This makes them more reliable and quicker to launch, as they do not need to be fueled just before use. These missiles are commonly used in military applications due to their efficiency and effectiveness. They can be launched from various platforms, including ground-based silos and mobile launchers. Examples of solid fuel missiles include the Trident II and the Agni series, which are designed for strategic deterrence and tactical strikes.