Poland and France sign historic treaty on enhanced cooperation

French President Emmanuel Macron and Polish Prime Minister Donald Tusk have signed a landmark treaty in Nancy, France, on May 9, 2025, aimed at strengthening bilateral ties, including military and civilian nuclear cooperation.

Polish Prime Minister Doland Tusk (left) and French President Emmanuel Macron (right) during the signing of the Polish-French treaty in Nancy, France, on May 9, 2025.Photo: PAP/Marcin Obara

The treaty, signed during a formal ceremony on Friday, is designed to bolster the alliance between Poland and France, with a focus on mutual assistance in the event of external threats, including military support. Prime Minister Tusk had previously stated that the treaty would 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 regarding collaboration in civilian nuclear energy. „This treaty is not just about good intentions – it’s a historic breakthrough,” said Prime Minister Tusk, highlighting the importance of this strengthened partnership.

The treaty marks a new chapter in Poland and France’s relationship, with both leaders expressing confidence that it will serve as a solid foundation for future cooperation across various sectors.

As the French president noted via social media, posting 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.” 

(m p)

Source: PAP/X/@PremierRP_en/@EmmanuelMacron

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