BERLIN — Almost three years into the U.S. presidency of Donald Trump, Germans and Americans continue to have notably different perspectives on the relationship between their two countries, with Americans much more optimistic than their European counterparts, a study said Tuesday.

The Pew Research Center and the Koerber-Stiftung foundation said in the joint report that three-quarters of Americans surveyed characterized the relationship with Germany as good, while nearly two-thirds of Germans polled saw relations as bad. Only 2 percent of Germans said the relationship with the U.S. is very good, compared to 13 percent of Americans.

Despite this disconnect, views have become more positive in Germany over the past year: The share of Germans who said the relationship between the U.S. and Germany is good rose from 24 percent in 2018 to 34 percent this year.

The U.S. had been the Germans’ most important trans-Atlantic partner from the end of World War II through the Cold War. But after the fall of the Berlin Wall three decades ago and German reunification in 1990, Germany began focusing more on its partners in the European Union.

The relationship between Germany and the U.S. also took a hit after Trump became president in 2017 and is mirrored in the strained relations of Trump and German Chancellor Angela Merkel.

Despite the obvious tension, however, Americans’ view of the bilateral relationship is at its highest point in three years of surveys, rising from 68 percent in 2017 to 75 percent this year.