NATO Communications and Information Systems Services Agency Command, Control, Communications, Intelligence, Surveillance and Reconnaissance (C4ISR) capabilities. The Director of NCSA was accountable to NATO's Consultation, Command and Control Board for executing the general policy decisions, directives and strategy associated with providing CIS services throughout NATO. The Director was also accountable to the Supreme Allied Commander Europe (SACEUR) for all operational, or deployed, CIS assets. In 2007, Canadian Forces internet sources said that NCSA comprised a central headquarters staff co-located with Allied Command Operations at the Supreme Headquarters Allied Powers Europe in Mons, Belgium; two deployable NATO Signal Battalions, each with four deployable communication modules, comparable in size
Supreme Headquarters Allied Powers Europe the bulk of NATO's forces, proved to be much more complicated. General Eisenhower considered naming an overall Commander-in-Chief (C-in-C) there as well but soon realized it would be difficult to find an arrangement that would satisfy all three major powers with forces in the Center—the United States, United Kingdom and France—as they had strongly differing views on the proper relationship of air and ground power. Drawing upon his World War II experience, General Eisenhower decided to retain overall control himself and did not appoint a C-in-C for the Central Region. Instead there would be three separate C-in-C's (air, land, and