The treaty is designed to bolster the Polish-French alliance, with a focus on mutual assistance in the event of external threats, including military support.
Tusk has said that the treaty will establish a framework for both countries to assist each other in case of aggression.
Following the main agreement, the two leaders also finalized a second document on collaboration in civilian nuclear energy.
"This treaty is not just about good intentions – it’s a historic breakthrough," said Tusk.
The treaty marks a new chapter in Polish-French relations, with both leaders expressing confidence that it will serve as a solid foundation for future cooperation across various sectors.
In a social media post, Macron said in Polish: "Nancy - a city of memory that symbolises the deep ties between Poland and France - today becomes the setting for a new chapter in our friendship: a stronger partnership in the service of a more sovereign Europe."
(mp/gs)
Source: PAP/X/@PremierRP_en/@EmmanuelMacron
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