With that in mind, Macron's government deployed more than 130,000 civil servants and members of France's security services to protect this year's Bastille Day celebrations, according to figures from the Interior Ministry.
But any breakthrough on trickier issues such as Trump's rejection of the Paris climate change deal and his "America First" trade policy are unlikely.
Earlier, Macron gave Trump a personal tour of Napoleon's tomb at the Invalides military complex in central Paris, before the two men headed for talks.
Mr. Macron said that he understands Mr. Trump's motivation and also acknowledge the disagreement over the climate tender.
President Donald Trump has arrived in central Paris to participate in Bastille Day celebrations.
French President Emmanuel Macron, standing in a military jeep, inspected the troops lined up on the avenue. "He took a meeting with a Russian lawyer, not a Russian government lawyer, but a Russian lawyer".More news: 'Game of Thrones' Season 7 premiere photos released
While representing the people of the United States, Trump grabbed Brigitte Macron and repeatedly judged her looks as President put his scummy sexism on full display in front of the world. We'll see what happens.
The protocol for joint leader news conferences is for two questions being given to the host country's media pool and two questions for the guest's media. "So, you'd better do a good job", Trump told Macron, drawing laughs from some reporters.
As each pair was about to say their farewells, the United States president turned to Brigitte and gestured towards her body.
First Lady Melania Trump made her first stop France's biggest pediatric hospital where she met with the staff and children.
Following the Bastille Day parade in Paris, Mr Macron will head to the city to attend a commemoration for those who lost their lives. They boarded Air Force One after the parade for the flight back to the United States.
For France, this year's Bastille Day has an additional poignancy as the first anniversary of one of the deadliest Islamist militant attacks of the past few years.
The 39-year old leader has pledged to bring France's defense budget to the equivalent of two percent of economic output by 2025 from 1.7 percent today.