After completing "Battle of Britain", Nash found himself creatively blocked and again sick with asthma. Whilst unable to paint he did produce a number of photographic collages which included symbols and motifs from previous works often alongside images of Hitler. Nash submitted a series of these pieces, entitled "Follow the Fuehrer", to the Ministry of Information for use as propaganda but they declined to use them. When he did resume painting, Nash produced "Defence of Albion", which is considered the weakest of his four large WAAC paintings. Nash had great difficulties completing the painting which shows a Short Sunderland flying boat in the sea off Portland Bill. As he had only seen photographs of Sunderlands, and was too ill to go to the coast to view one, Nash wrote to Eric Ravilious, who had painted flying boats in Scotland, asking him to describe the effect of sunlight on the plane.