How 'true' is climate change, and how do we know? Who is to blame for the financial crisis? What is the truth about the drone wars? We live in an age of crises that are global in scale and potentially apocalyptic in severity. In response, the language of war has been increasingly deployed across a whole spectrum of ecological, social and economic problems: war on terror; war on warming; war on want; war on bankers' bonuses; war on drugs; war on waste; war on genocidal leaders. Peter Lee examines climate change, military intervention and financial collapse to reveal how truth is used by competing interests to shape individual behaviour, attitudes and identity.