In April, following the action in which Block won his MC, the Ayrshire Yeomanry lost two CO's within a few days. Block took over and in May led his regiment in the final battle for Tunis. Block embarked for Naples with his regiment and their 25-pounder field guns in February 1944. It was the Ayrshire Yeomanry's first experience of mountains and mule tracks. In April, the 1st Guards Brigade took over the Cassino sector with the Yeomanry in support. Much of the town was a chaotic maze of rubble, ruins and craters. Strong points, like the jail and the cemetery crypt outside the town, were turned into battalion HQs with the Yeomanry manning observation posts and providing the wireless operators.