 "Empire of Shadows" develops and interrogates themes of war and peace first examined in his Selected Poems.Some of the verses look at the effects of carpet-bombing of cities in the Second World War, the destruction by atomic bombs of Hiroshima and Nagasaki, the Blitz in London, the targeting of German cities by Britain’s Bomber Command, the fire-bombing of Tokyo, as well as the mass violence of more recent conflicts in Iraq and Afghanistan.In 2020 the Limerick-based publishing house Revival Press published his fifth collection of poems entitled Further On Up the Road.