It was an audacious trip almost unheard of for a US president.
Appearing in a war zone under regular attack, White House officials describe Joe Biden's unexpected visit to Ukraine's capital Kyiv as "unprecedented in modern times".
They say previous presidential trips to wartime Iraq and Afghanistan had the back up of a heavy US military presence.
And despite widespread speculation among the press corps that Mr Biden might be planning a trip to Ukraine while he was in Poland, the visit still took everyone completely by surprise. บาคาร่าจีคลับ
The sight of him appearing beside President Volodymyr Zelensky in the heart of Kyiv and under the sound of air raid sirens, makes a louder statement than anything he can say in a speech in Poland.