Donald Trump posted an unexpected statement late on Thursday evening, Polish time, on his social media platform Truth Social.
"In view of the electoral success of the current president of Poland, Karol Nawrocki, whom I proudly endorsed, and our relations with him, I am pleased to announce that the United States will send to Poland an additional 5,000 troops," Trump wrote.
Shock on both sides of the Atlantic
The decision took both the Polish authorities and the US administration itself equally by surprise.
US media report that Trump is thought not to have consulted anyone before taking this step.
