With the fall of the Soviet Union, the United States became the sole superpower and global policeman. Now China is challenging the US in Africa and Southeast Asia, Putin has outmanoeuvred the West in Syria, and Trump has confirmed the new global state of affairs by calling for an end to the Pax Americana.

Historians argue the end of the Pax Britannica after World War I led to the rise of Hitler. Will the end of Pax Americana be equally catastrophic? Do we need new alliances, and new arsenals, to avoid future conflagration? Or is there little to fear and should we see such scenarios as exaggerated and overblown?

Director of the IEA, Mark Littlewood, Former Secretary of State for International Development, Clare Short and British political activist, Tariq Ali.