This study discusses the 26th Division encounter with gas warfare in the Second Battle of the Marne and covers types of gases, instruction in warfare, the German version and analyzes the actual attack.

This study discusses the 33rd Division encounter with gas warfare along the Meuse and covers types of gases, military operations, use of gas masks, and analyzes the actual attack.

This study discusses the 29th Division encounter with gas warfare in the Cotes de Meuse and covers types of gases, artillery operations and analyzes the actual attack.

This study covers the gas attack of 23-24 June, 1918 on the 2nd Division and the effect it had on the operation at Chateau Thierry.

This is a tentative study of the gas experience of the use of gas in the Meuse-Argonne campaign during World War I.

This study discusses the 26th Division encounter with gas warfare on the front from Aprement to Flirey and covers types of gases, military operations, lack of training, and analyzes the actual attack and the many mistakes made in using gas.

This study discusses the 32nd Division encounter with gas warfare in the advance to Fismes and covers types of gases, military operations, German Army movement, and analyzes the actual attack.

This study discusses the 1st Division encounter with gas warfare in Cantigny and covers equipment used, types of gases, instruction in warfare, the German version and analyzes the actual attack.

This is a tentative study of the gas experience of the 5th Division during World War I. The study begins with an account of a gas projector attack against elements of the division before the gas attack of the Frapelle operation; both enemy attacks are notable examples of the use of gas in trench warfare.

This study discusses the 79th Division encounter with gas warfare in the Montfaucon operation and covers types of gases, military operations, lack of training, and analyzes the actual attack.

This study discusses the 42nd Division encounter with gas warfare in the Argonne offensive and battle at the Ourcq and covers types of gases, military operations, use of machine guns, and analyzes the actual attack.

This study discusses the 89th Division encounter with gas warfare in the line of the St. Mihiel salient near Flirey and covers types of gases, military operations, lack of training, and analyzes the actual attack with the 30th Engineers attached.

This study discusses the 89th Division encounter with gas warfare in the Bois de Bantheville near Flirey and covers types of gases, military operations, lack of training, and analyzes the actual attack with the 353rd and 354th Infantry.

Originally published in 1957 by the U.S. Army Chemical Corps Historical Office. This is a study of the gas experience of the 2nd Division at Belleau Wood during World War I. It includes a narrative of the events and analysis. The training received by the division in gas warfare is discussed.

Rather belatedly, the United States Army in preparing for World War II investigated on an intensive and very large scale the chemical munitions that might be necessary or useful in fighting the Axis powers. This effort required the collaboration of a host of civilian scientists and research centers as well as a great expansion of the laboratories and proving grounds of the Chemical Warfare Service itself. A similar development, recounted at the beginning of this work, came too late to influence the outcome of World War I. In World War II, on the other hand, the Army not only prepared against gas warfare sufficiently well to discourage its employment by the enemy, but also developed a number of new chemical weapons that contributed materially to victory. The authors add perspective and interest to their story by telling very briefly about corresponding German and Japanese activity. The manufacture of chemical munitions in quantity was possible only through a rapid expansion of private industry to support and supplement the work of Army arsenals. Both necessity and choice led the Chemical Warfare Service to make widespread use of small industrial concerns throughout the United States, and the account of production in this work is especially pertinent to a consideration of the problems involved in military contracting with small business on a big scale.