Early on Saturday, the United States, France and Britain launched 105 missiles targeting what they said were three chemical weapons facilities in Syria in retaliation for a suspected poison gas attack in Douma on April 7.
"Ten days ago, President Trump was saying 'the United States should withdraw from Syria'. We convinced him it was necessary to stay," Macron said in an interview broadcast by BFM TV, RMC radio and Mediapart online news.
"We convinced him it was necessary to stay for the long term."
The United States, Britain and France said they only hit Syria's chemical weapons capabilities and the strikes were not aimed at toppling Syrian President Bashar al-Assad or intervening in the civil war.
Limiting the strikes to these specific targets was not necessarily Trump's initial plan, Macron said.
"We also persuaded him that we needed to limit the strikes to chemical weapons (sites), after things got a little carried away over tweets," he said.