"Battle of Britain" (1941) is an imaginative representation of an aerial battle in progress over a wide landscape of land and sea, suggesting the Thames Estuary and the English Channel. The white vapour trails of the Allied aircraft form patterns resembling buds and petals and appear to be growing naturally from the land and clouds, in contrast to the rigid, formal ranks of the attacking forces. Clark recognised the allegorical nature of the work and wrote to Nash, "I think in this and "Totes Meer" you have discovered a new form of allegorical painting. It is impossible to paint great events without allegory... and you have discovered a way of making the symbols out of the events themselves."