FRANKFURT AM MAIN, GERMANY – MARCH 07: The headquarters of the European Central Bank (ECB) is seen in front of the Frankfurt skyline with the finance district, the river Main and the container harbor on March 7, 2019 in Frankfurt, Germany. Economic growth in the Eurozone group of nations has stalled, partially due to uncertainties caused by the tariff conflicts initiated by the administration of U.S. President Donald Trump, both with China and the European Union. (Photo by Thomas Lohnes/Getty Images)