The National Socialist Underground (German: Nationalsozialistischer Untergrund, ), or NSU (German: [ɛnʔɛsˈʔuː]), was a far-right German neo-Nazi terrorist group which was uncovered in November 2011. The NSU is mostly associated with Uwe Mundlos, Uwe Böhnhardt and Beate Zschäpe, who lived together under false identities. Between 100 and 150 further associates were identified who supported the core trio in their decade-long underground life and provided them with money, false identities and weapons. Unlike other terror groups, the NSU had not claimed responsibility for their actions. The group's existence was discovered only after the deaths of Böhnhardt and Mundlos, and the subsequent arrest of Zschäpe.