Grenadiers are a type of soldier originally trained to throw grenades. They emerged in the 17th century and were often part of elite infantry units. Over time, their role evolved, and they became known for their strength and bravery in battle, often leading assaults and engaging in close combat. Today, the term "grenadier" is used to refer to specific military units in various countries, such as the British Army’s Grenadier Guards. These units typically wear distinctive uniforms and are involved in ceremonial duties as well as active military operations, maintaining a proud tradition of service.