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
Exercise Longstep on a renewed urgency following the outbreak of the Korean War, prompting NATO to establish Supreme Headquarters Allied Powers Europe (SHAPE) under the command of General of the Army Dwight D. Eisenhower, U.S. Army, on 2 April 1951. Exercise Longstep was an early naval exercise for SHAPE's southern regional command, Allied Forces Southern Europe (AFSOUTH). The overall exercise commander for Grand Slam was Admiral Robert B. Carney USN, NATO's Commander-in-Chief Allied Forces Southern Europe (CINCSOUTH). AFSOUTH component commanders during Longstep were: The objective of the Allied ("Blue") forces was to dislodge enemy ("Green") invasion forces from their occupying positions in