Most of the regiments reached France during the months of September and October, 1918, and consequently did no actual fighting. They worked in the S. O. S. and in the advanced section, sometimes in the back area of shell fire, and in a few instances near the front lines. Their work consisted of road building, assistance at the base ports, salvaging the battlefields, demunition and demolition work, and the building of ammunition dumps with material moved from the battlefields to the roads and then to central stations. The removing of ammunition after the Château-Thierry drive was so satisfactorily done that Lt. Col. Ord, chief ammunition officer of the S. O. S., wrote a letter in which he said: “These two depots were transformed from a heterogeneous pile to this remarkable condition in seven days, and I desire to compliment the officers and twenty-six men who went from these headquarters as well as the 801st Pioneer Infantry for this remarkable achievement.” Before the Armistice several regiments worked behind the front lines in the Argonne Forest and at St. Mihiel, where they built narrow- and wide-gauge railroads and macadam roads for the movement of light and heavy artillery and supplies. It was also the task of some to bury the dead, working under shell fire. Sometimes bombs dropped among them, killing and wounding them; but because of their late arrival in France they did not work long in such danger. After the Armistice some did guard duty, looking after the German prisoners. Companies of the 806th and 811th Pioneer Infantry regiments did a part of the concrete and grading work for the Pershing Stadium, the $100,000 structure erected by the Y. M. C. A. for the inter-allied games held in July, 1919. While the Pioneer Infantry regiments and the stevedores did the same kind of work for the most part, the former received the better treatment, as their officers generally insisted on a square deal for their men. In one battalion the major, an Alabamian, discouraged segregation by removing all objectionable signs, and he made no effort to prevent his men from associating with respectable French people. The commander of the 815th Pioneer Infantry regiment gave wholesome lectures to his men as a means of education and encouragement. These organizations also, with few exceptions, were liberal in granting leaves and in issuing week-end passes, and some of the men were sent to the universities in France when the A. E. F. conducted its great educational program.