Prague Castle is the official residence of the Czech Republic’s president. The Bohemian Crown Jewels are also stored inside. Protecting both are the jobs of 660 Castle Guards. They are an elite division of the Czech army established in 1918 when Charles III, the last King of Bohemia, abdicated the throne and Czechoslovakia became a sovereign state. This sentry is standing in front of a watch house outside the First Courtyard, also called the Square of Honor. He is wearing the blue summer dress uniform for lower officers. The 52/57 semi-automatic rifle is used for ceremonial purposes.