Unless in the company of an important person, Hitler would sit in the front, next to Kempka, with a valet behind him.[5] When travelling in motorcades, Hitler's car would be followed by two cars to the left and right, one with FBK men and the other with a detachment of Reichssicherheitsdienst (Reich Security Service; RSD) men.[6] Further behind would be a car with his adjutants and physician, and more cars for press agency representatives, stenographers, and provisions. Later in July 1938, upon Kempka's directive a fully armor-plated Mercedes was built and delivered in time for Hitler's 50th birthday of 20 April 1939.