Jeremy Bender/Business Insider
Located in southwestern Germany, it serves not only as the headquarters of the US Air Force in Europe and a major NATO installation but also as a gateway to American military operations around the globe.
The base is part of a conglomeration of 12 Army and Air Force installations that make up the Kaiserslautern Military Community (KMC).
This community, also known as K-Town, hosts almost 54,000 Americans across 300 neighboring German towns and cities, turning the Rhineland-Palatinate state of Germany into a tiny slice of America. The area has the largest concentration of Americans outside of the US, though it's also notably multicultural and includes personnel from many countries.
Over two days in September of 2014, Business Insider was given an extensive tour of the base and its operations.