Tariffs, defense strain US-Europe ties as values diverge

Europe's relationship with the United States faced new challenges in 2025, as the second presidency of Donald Trump accelerated a shift Europe had anticipated, but did not expect to happen with such speed or intensity.

By the end of the year, trade, technology, and security had all become bargaining chips — reshaping the transatlantic partnership from one built on shared ideals to one that is increasingly guided by pragmatism and realism.

Reporter: Xing Yi
Video: Brian Chang