In January 1945, XIII Corps reverted to Eighth Army command. In April 51 HAA took part in the Spring 1945 offensive in Italy, frequently supporting the "Friuli" Combat Group and "Folgore" Combat Group of the Italian Co-Belligerent Army operating in XIII Corps. As well as supporting these attacks, the regiment fired various tasks, including CM and bridge demolition, and against infantry formations, but found that the speed of the enemy withdrawal made it difficult to stay in range, and frequent moves forward were required. The regiment was in the Forlì area when the German forces in Italy signed the instrument of surrender on 29 April. At the end of the campaign, 2nd AA Bde's regiments were reorganised as a motor transport group.