President Donald Trump and his French counterpart, Emmanuel Macron, are looking to set aside differences on trade and climate change and find common ground as they meet Thursday ahead of Bastille Day celebrations in Paris.

Trump arrived in the French capital after an overnight flight from Washington and hours before his meeting with Macron to tackle potential solutions to the crisis in Syria and broader counterterrorism strategies.

U.S. President Donald Trump arrived in Paris on Thursday morning, ahead of Bastille Day celebrations in the French capital. (July 13)

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Trump's decision last month to withdraw the U.S. from the Paris climate accord sparked outrage across Europe and anti-Trump protests are planned while he is in Paris. Macron, a staunch advocate of research to combat global warming, has beckoned "all responsible citizens," including American scientists and researchers, to bring their fight against climate change to France.

The leaders plan to hold a news conference after their talks, and Trump may face tough questions about emails revealing that his eldest son welcomed the prospect of receiving Russian government support in last year's presidential campaign against Hillary Clinton.

Trump came to his son's defense Wednesday, praising Donald Trump Jr.'s performance in an interview on Fox News Channel. Trump tweeted: "He was open, transparent and innocent. This is the greatest Witch Hunt in political history. Sad!"

The visit to Paris could offer Trump a well-timed distraction from the controversy. He will mark the 100th anniversary of America's entry into World War I by visiting U.S. troops. He'll also be the guest of honor at Friday's Bastille Day events — a celebration of French national pride. White House officials are casting it as a celebration of the U.S.-French military alliance — both then and now.

The leaders and their wives will end a busy day of meetings Thursday with a lavish dinner at Jules Verne at the top of the Eiffel Tower.

Trump is visiting a city he has repeatedly disparaged. When he announced his decision on the climate agreement, Trump said he was "elected to represent the citizens of Pittsburgh, not Paris." And he's repeatedly said the city has been ruined by the threat of terrorism, which he ties to immigrants.

"Paris isn't Paris any longer," he said in February.

But counterterrorism issues give Macron and Trump the potential for a strong working relationship.

Macron's national security pitch hasn't differed drastically from Trump's. On Syria, he argues for intervention, saying that President Bashar Assad is a threat to Syria and the Islamic State group is a threat to France. France has been plagued in recent years by extremist attacks. During last year's Bastille Day celebrations, a 19-ton cargo truck deliberately plowed into crowds in Nice, killing more than 80 people.

Macron supports intervention against Syria's government in response to its use of chemical weapons and could prove an important ally as the Trump administration seeks to increase pressure against Assad. But in doing so, they'll need to tackle the issue of Russia's support for Assad, something Trump has only passively acknowledged.