More than 70 million Americans have chosen Donald Trump as their country's next president. The election results indicate the emergence of fresh political responsibility lines in the United States. The choice made on November 5 will set the course for the country for years to come, shaping home policy and the US's position on the global stage. For Western Europe, Trump's election as president may mean the request to redefine the direction of its policy, primarily in terms of greater investment in joint defence within NATO.