Ukrainian President Volodymyr Zelenskyy is expected to travel to Washington on Wednesday to meet with U.S. President Joe Biden and address Congress, according to people familiar with the matter.

Zelenskyy’s visit would be his first trip outside his country since Russia invaded on Feb. 24. The speech will follow an expected move by the Biden administration to announce plans to deliver Patriot anti-aircraft missiles to Kyiv, ratcheting up U.S. support.

Biden will meet with Zelenskyy at the White House, according to people familiar with the planning.