The present chapter focuses on legal activism as conducted by the largest organization within the OKV, the Initiativgemeinschaft zum Schutz der sozialen Rechte ehemaliger Angehöriger bewaffneter Organe und der Zollverwaltung der DDR (Joint Initiative for the Protection of the Social Rights of Former Members of Armed Bodies and the Customs Administration of the GDR, ISOR). According to its own accounts, in the early 1990s ISOR had a membership of no less than 25,000, and still musters 20,000 members today. Although these figures most likely represent a gross overestimation of the actual number of members, ISOR remains the largest OKV organization by far. Founded in June 1991 with the aim of achieving the full restoration of the original pension rights of former GDR secret service and military personnel, ISOR drew from the 91,015 official Stasi coworkers at the time the Berlin Wall fell, not to mention former Stasi personnel already retired by 1990. ISOR is thus the OKV organization that most clearly represents Stasi interests. Its current director, Wolfgang Schmidt (b. 1939), was the head of the group for Evaluation and Information of Department XX of the MfS; this section was responsible for surveillance of the state apparatus, culture, church, and underground.