 The main elements of these systems were the Initial Voice Switched Network (IVSN), Telegraph Automated Relay Equipment (TARE), Status Control Alerting and Reporting System (SCARS), SATCOM systems and equipment and the ACE High Tropospheric Scatter trunk communication network.By the early 1990s due mainly to the arrival of new systems and new technology it became necessary to reorganize the Communication and Information systems support for NATO.This coincided with a major restructuring of the NATO Command to take advantage of the "peace dividend" after the fall of the Berlin Wall.