Yale professor says wars in Ukraine and Gaza and threats from Donald Trump risk the ‘total collapse’ of the global courts system

A coalition of states is needed to stop the international legal order falling apart, a distinguished international academic has warned.

Oona Hathaway, the president-elect of the American Society of International Law and a former Pentagon legal adviser, said the core of the postwar global order – the prohibition on taking land by force – was under unprecedented challenge in a “scary moment” for the world.