US ‘not powerful enough to go it alone’, Merz tells Munich conference

German chancellor rebuts idea of American unilateralism and says democracies have partners and allies'

The US acting alone has reached the limits of its power and may already have lost its role as global leader, Friedrich Merz, the German chancellor, warned Donald Trump at the opening of the Munich Security Conference.

Merz also disclosed he had held initial talks with the French president, Emmanuel Macron, over the possibility of joining France's nuclear umbrella, underlining his call for Europe to develop a stronger self-standing security strategy.