The Rise and Fall of the British Nation: A Twentieth-Century History (2018) 978-1-8461-4775-3

Britain's War Machine: Weapons, Resources and Experts in the Second World War (2011) 978-0-7139-9918-1

Warfare State: Britain 1920–1970 (2005) 978-0-521-67231-3

The Shock of the Old: Technology and Global History since 1900 (Profile, 2006) 978-1-86197-306-1

is also an entertaining read.