Kaiserslautern is a city in southwest Germany, located in the Bundesland (State) of Rhineland-Palatinate (Rheinland-Pfalz) at the edge of the Palatinate Forest (Pfälzer Wald). The historic centre dates to the 9th century. It is from Paris, from Frankfurt am Main, and from Luxembourg.
Kaiserslautern is home to almost 100,000 people. Additionally, approximately 50,000 NATO military personnel inhabit the city and its surrounding district (Landkreis Kaiserslautern), and contribute approximately US$1 billion annually to the local economy. These are mainly Americans, who form the largest U.S. population center outside the territory of the United States and often call the city K-Town.