Ukrainian President Volodymyr Zelensky is expected to meet with U.S. President Donald Trump and key European leaders at the White House on Monday. This marks their first meeting since a tense exchange in February. The agenda is focused on potential NATO-like security guarantees for Ukraine, a measure seen as critical for a future peace agreement with Russia. The meeting follows the August 15 Alaska summit between Trump and Russian President Vladimir Putin, where Ukraine and its European allies were not included.