NATO Communications and Information Systems Services Agency and mandate to signals companies (including 1st NATO Signals Battalion at Maastricht, Netherlands); ten Sectors that supported the 10 major headquarters in NATO; and the NATO Communication and Information Systems (CIS) School in Latina, Italy. It appeared in 2011 there was a 3rd NATO Signal Battalion (3NSB), located in Bydgoszcz, Poland, as well as a NATO Signal Regiment. In 2011, NCSA comprised a central headquarters staff co-located with Allied Command Operations at the Supreme Headquarters Allied Powers Europe (SHAPE) in Mons, Belgium; the NATO Signal Regiment in Brunssum, Netherlands, as well as three deployable NATO Signal Battalions; five Sectors and
Allied Command Transformation was preceded by Allied Command Atlantic (ACLANT) established in 1952 under the overall command of Supreme Allied Commander Atlantic (SACLANT), with its headquarters at Norfolk, Virginia. ACLANT's purpose was to guard the Sea lines of communication between North America and Europe in order to reinforce the European countries of NATO with U.S. troops and supplies in the event of a Soviet/Warsaw Pact invasion of Western Europe. Following the end of the Cold War, the Command was reduced, with many of its subordinate headquarters spread across the Atlantic area losing their NATO status and funding. However, the basic structure remained in