Marcin Przydacz, head of the International Policy Bureau at the Polish presidential office, made the comments on Tuesday, shortly before Nawrocki's departure for the two-day summit, which brings together NATO leaders on 7–8 July.
Przydacz said the security of Europe and the United States were closely linked, and that the Polish leader wanted transatlantic relations to remain "in the best possible state."
He argued Europe should take a "much more active" role in defence spending, saying Poland was "an absolutely exemplary case" for meeting its 5 percent of GDP defence spending commitment, while many European allies had yet to reach that level.
He said Nawrocki would "certainly call" on allies to close that gap, adding he expected US President Donald Trump to press the same point.
On Russia, Przydacz said Nawrocki wanted NATO to again name Moscow as a direct threat to Euro-Atlantic security.
He added that the president also hoped the summit would advance alliance infrastructure projects, including military bases and pipeline
On the sidelines of the gathering, Nawrocki is expected to meet Canadian Prime Minister Mark Carney, Finnish President Alexander Stubb, Czech President Petr Pavel and Dutch Prime Minister Rob Jetten.
Turkish President Recep Tayyip Erdoğan is hosting a dinner for leaders on Tuesday evening.
Poland's delegation also includes Defence Minister Władysław Kosiniak-Kamysz and Foreign Minister Radosław Sikorski, who also serve as deputy prime ministers.
The Ankara summit is expected to focus on reaffirming allied unity, greater European responsibility for defence and continued support for Ukraine.
It is the second NATO summit hosted by Turkey, after Istanbul in 2004.
(ał)
Source: PAP