Military Academy Karlberg (Swedish: Militärhögskolan Karlberg, MHS K) is a Swedish military academy, since its inauguration in 1792 in operation in the Karlberg Palace in Solna, just north of central Stockholm. It is thus the oldest military academy in the world to remain in its original location. Swedish cadets join the academy as part of their three-year training as do officers aspiring to become navy lieutenants or army and air force captains.