Men forming a shield on drill field, in uniform for dark areas and shirtless and hatless for light. Buildings and tents in background. Printed on photograph front: "The human U.S. shield. 30,000 officers and men, Camp Custer, Battle Creek, Mich., Brig. Gen. Howard L. Laubach commanding. [c] 1918, Mole & Thomas, 915 Mediman Bldg., Chicago, Ill."
