This bawdy satire suggests the Duke is militarily incompetent. Mrs Clarke is shown spiking a large phallic cannon, that is, rendering it unusable by stopping up the touch-hole. The Duke kneels beside her bemoaning his fate. In the background, a group of soldiers flees a woman beating a drum to the ‘Rogues’ March’, the tune by which disgraced soldiers were drummed out of the army. Cat. 76