"This visit will underscore the friendship and solidarity between the United States and France, our oldest ally," said White House Press Secretary Josh Earnest.
"Obama and Hollande will consult and coordinate our efforts to assist France's investigation into these attacks, discuss further cooperation as part of the 65-member counter-ISIL coalition, and reiterate our shared determination to confront the scourge of terrorism," Earnest said in a statement using another acronym for IS, which has claimed responsibility for the carnage in the French capital.
"Let's assume that we were to send 50,000 troops into Syria," he had said.
Syria's four-year civil war has now claimed more than a quarter of a million lives and displaced millions of people.