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
Supreme Headquarters Allied Powers Europe Europe, as well as smaller commands. From 1993, the staffing of ACE was reduced in line with personnel reductions already in progress since 1990 and the Schaefer Plan, drafted by retired German general Shaefer. Shaefer's aim was to begin the first effort to streamline NATO's Cold War structure to meet the new circumstances. Personnel in the headquarters fell from 18,354 in 1990 to 12,919 in 1996. Costs fell from US $621m to $482m over the same period. From 1994-c.1999, there were three Major Subordinate Commands in ACE: Allied Forces Northwestern Europe at RAF High Wycombe, Allied Forces Central Europe at