They will certainly be grateful for Trump's visit to Warsaw, especially since he has chosen to address Poles at Krasinski Square, a location that symbolizes Polish heroism during World War II.
President Donald Trump opens his two-nation European visit with what he expects to be a short but warm stop in Poland before he encounters what could be a frostier reception and thornier issues at an worldwide summit in Germany. Elected in the summer of 2015, Duda is a member of the right-wing Law and Justice Party, and, like Trump, he's an anti-immigration nationalist with an authoritarian streak.
Some fear that the visit may further widen a fissure between East and West in the European Union, which Mr. Trump has disparaged previously, and embolden leaders like Mr. Kaczynski and Prime Minister Viktor Orban of Hungary, who has been similarly criticized for a light authoritarianism.
President Donald Trump will learn this week whether he gets a second chance to make a first impression as he returns to Europe and has his first encounter with Russia's Vladimir Putin.
This is not just a courtesy to the US president, who's been accused of traveling with his own gaggle of human applause machines, it's the fulfillment of a promise made to the White House, the AP reports.
Unlike the G-7, this week's summit will include numerous strongmen with whom he appears to feel more at ease, including Prime Minister Narendra Modi of India, Xi Jinping of China, Recep Tayyip Erdogan of Turkey, and Russia's Vladimir Putin.
"The message is that the United States continues to show it's not wedded simply to working with the existing European elites and that it's quite happy" to build ties with governments challenging Brussels on certain issues, Prof Szczerbiak says. The party's leader and Poland's most important politician, Jarosław Kaczyński, described Trump's decision to visit Warsaw as a "new success" for Poland.
"The withdrawal from the Paris agreement does mean that there will be a coalition, which is there, quite committed, but doesn't include the U.S., " said Amar Bhattacharya, a senior fellow for global economy and development at the Brookings Institution in Washington.
"Well there's no specific agenda", said White House National Security Advisor H.R. McMaster.
From Poland's capital, Trump will fly to Hamburg in Germany for a meeting of the Group of 20 leaders that begins Friday.
As with that earlier tour, though, any warm glow is likely to be short-lived before Trump is confronted with the reality of his standing in the world order. "And also the threat from Russian Federation will be explicitly mentioned".
There, anti-globalization protestors are already amassing on the city of Hamburg, where Trump will attend a G20 meeting, and are planning a "welcome to hell" rally.
The report found that other G20 economies inflicted 52 "hits" against US commercial interests in the first half of 2017, 29% fewer than in the same period a year ago, and a similar decline versus 2015. And in late July, he'll send Vice President Mike Pence to Estonia and Georgia two former Soviet satellites straddling the Russian border and new North Atlantic Treaty Organisation member Montenegro.
America's biggest trade partners have taken far fewer protectionist measures against US business so far this year, possibly because they're anxious about retaliation, according to the authors of the Global Trade Alert - published by the London-based Centre for Economic Policy Research. Sharing a border with Russian Federation "is of the highest concern for Poland". Trump has had three phone calls with Putin since taking office.
Trump's overseas trip will be his first since he announced that he was withdrawing the USA from the landmark Paris climate agreement, to the regret of a number of world leaders who had lobbied Trump to remain in the 2015 pact.
German Chancellor Angela Merkel, the host of the Group of 20 meeting of leading economies, has signaled she will not back down on climate and trade.