3 NOV--This Day in US Military History, year 2

1917 – Germans drew first blood from the American Expeditionary Force in the French sector on a Saturday morning.

The 1st Division had nearly completed its training with the French, and final training exercises were to take place as one infantry and one artillery battalion from each American regiment went into line with a French regiment for a ten-day period. A raid by a German patrol hit the American sector at Artois on the first morning of their tour and killed three Americans and captured sixteen. After daylight, Capt. George Marshall visited the unit and determined that it had shown a good account of itself.
On Monday General Pershing ordered an inspection team to visit the unit and make a report. The team included the chief of the Army schools, a lieutenant colonel from the Operations Section, and Colonel Fiske, then deputy training officer of the AEF.

https://thisdayinusmilhist.wordpress.com/2014/11/03/november-3/