 -- President Donald Trump embarks for Europe today to visit a key NATO ally and attend the G-20 summit on the second foreign trip of his presidency.

Trump will first head to Warsaw, Poland, where he's expected to deliver a speech.

Poland's Foreign Affairs Minister Witold Waszczykowski told reporters that his country would like Trump's assurance that the rotational presence of U.S. and other NATO troops in Poland will continue, according to The Associated Press.

Trump will then arrive in Germany for the two-day G-20 summit. There he will have a marathon of meetings with various world leaders, focused on trade, energy and military cooperation.

He is scheduled to have a highly anticipated meeting with Russian President Vladimir Putin on Friday.