The Grenadier Guards are one of the oldest regiments in the British Army, formed in 1656. They are part of the Household Division and serve as foot guards, primarily responsible for protecting the Royal Family and royal residences. Known for their distinctive bearskin hats and red tunics, they participate in ceremonial duties, including the famous Changing of the Guard at Buckingham Palace. In addition to their ceremonial role, the Grenadier Guards are a fully operational infantry regiment. They have served in various conflicts, including both World Wars and more recent military operations. Their history and traditions make them a significant part of British military heritage.