By the start of World War II, Nazi Party paramilitary groups had also been expanding and developing their own uniform designs, such as SS uniforms and insignia as well as uniforms used by such other Nazi groups such as the National Socialist Motor Corps (NSKK), the Organization Todt, and many others. In addition, as the Nazi Party and the German government became one and the same, each German ministry had the option to develop a standardized uniform and dress code with a state employee also having the choice to wear a Nazi party uniform, a uniform of a Nazi paramilitary group (such as the SS or SA), or (if the person was a reservist in the military) a uniform of the Wehrmacht. This created an extremely confusing array of titles, ranks, and uniforms, which has also caused historical difficulty in determining the various positions and titles that senior members of the German government held.