OTTAWA — The race to replace Canadian Prime Minister Justin Trudeau is dominated by one name: Donald Trump. How to wrestle with the incoming president and his tariff threats has emerged as the defining question in the Liberal Party leadership contest.

Officials and business executives at the annual gathering in Switzerland said the fight against global would continue with or without the United States.

The annual gathering takes place against the backdrop of U.S. President Donald Trump's first days back in the White House,

The world's political and business leaders have converged on the Swiss resort town of Davos to discuss global challenges. Leaders from China, Ukraine and Germany are taking the stage on day one. Follow DW for more.

There are four issues to consider when contemplating a hypothetical U.S.-Canada union: economics, politics, cultural dynamics and military prowess

A version of this article originally appeared in Quartz’s Need to Know: Davos newsletter. To get updates on the World Economic Forum delivered straight to your inbox all week, sign up here.

Among the issues likely to be explored at the World Economic Forum this week is the future of Ukraine and its impact on Europe.

World Economic Forum says responses from experts in business, politics and academia also highlight climate crisis

It means that we are in a polarized, fragmented world where we see less cooperation than in the past, and more competition. There is more focus on national interest. That is a challenge, as many of the biggest problems we face need global solutions.