On 4 December 1956, the Agency for the Control of Armaments (ACA) issues a report on the first control exercise at a United Kingdom depot on the European mainland, which was carried out on 20 November 1956 to gain useful experience of control measures and enable the ACA to make a constructive report to the Council of Western European Union. The inspectors conclude that, except for two discrepancies in the figures, no special remarks are called for concerning this visit, as the British authorities were very cooperative.