New York Evening World, June 27, 1917.

On this day 100 years ago, the first American troops of World War I set foot in France.  The landing location had been kept secret, but on that date, 14,000 American inantry troops landed at the Port of Saint Nazaire.  Despite the secrecy, an enthusiastic crowd was gathered at the port to greet them.  General Pershing quickly set up training camps in France to prepare the new recruits for war, and it would be four more months before they would enter combat.

References

• History.com