In less than a fortnight, Donald Trump has shredded long-standing security assumptions about American support for Europe, creating a new crisis for Ukraine and leaving the whole continent in greater peril than at any time since the Second World War.
In less than a fortnight, Donald Trump has shredded long-standing security assumptions about American support for Europe, creating a new crisis for Ukraine and leaving the whole continent in greater peril than at any time since the Second World War.