Both countries are becoming more alike — particularly in their belief that there can be only one winner.
For Mark Leonard's latest contributions to The Japan Times, see below:
Under U.S. President Donald Trump, however, a sophisticated set of tools known as secondary sanctions has become a bludgeon with which to threaten allies.
Europeans can no longer assume that their interests are synonymous with those of the U.S.
U.K. leaders' apparent belief that they can muddle through Brexit is setting the U.K. up for a rude awakening.
A deep divide within EU states poses the biggest threat to the European project.
Both governments and big tech companies are getting really good at controlling people through data.
German Deputy Finance Minister Jens Spahn's apparent bet on the rise of Trump-style populism is risky.
Ideally, French President Emmanuel Macron and German Chancellor Angela Merkel will enter into an open political marriage from which all of Europe will benefit, rather than an exclusive relationship that breeds resentment.
As global power has shifted from the West to the "rest," the liberal world order has become an increasingly contested idea, with rising powers like Russia, China and India increasingly challenging Western perspectives.
The consequences of Russia's intervention in Syria stretch far beyond the Middle East, heralding a new era in geopolitics.