1st and 2nd Division, Regular Army; 26th, (New England), 32d, (Michigan and Wisconsin), 41st, (Washington, Oregon, North and South Dakota, Colorado, New Mexico, Montana, Idaho, Wyoming, and Minnesota), and 42d (_Rainbow_, troops from twenty-six States) Divisions, National Guard. 1ST DIVISION--Major Gen. Charles P. Summerall, commanding; Lieut. Col. Campbell King, Chief of Staff; Major H. K. Loughry, Adjutant General. 1ST BRIGADE, INFANTRY--Major John L. Hines; 16th and 18th Regiments; 2d Machine Gun Battalion. 2D BRIGADE, INFANTRY--Major Gen. Beaumont B. Buck; 26th and 28th Regiments; 3d Machine Gun Battalion. 1ST BRIGADE, FIELD ARTILLERY--(Commanding officer not announced); 5th, 6th, and 7th Regiments; 1st Trench Mortar Battery. ENGINEER TROOPS--1st Regiment. SIGNAL TROOPS--2nd Battalion. DIVISION UNITS--1st Machine Gun Battalion. 2ND DIVISION (U. S. M. C.)--Brig. Gen. John E. Le Jeune, commanding; Brig. Gen. Preston Brown, Chief of Staff. 3RD BRIGADE, INFANTRY--Brig. Gen. Hanson E. Ely; 9th and 23rd Regiments; 5th Machine Gun Battalion. 4TH BRIGADE, INFANTRY (MARINES)--Brig. Gen. John E. Le Jeune; 5th and 6th Regiments; 6th Machine Gun Battalion. 2D BRIGADE, FIELD ARTILLERY--Brig Gen. A. J. Bowley; 12th, 15th, and 17th Regiments; 2d Trench Mortar Battery. ENGINEER TROOPS--2d Regiment. SIGNAL TROOPS--1st Battalion. DIVISION UNITS--2d Division Headquarters Troops; 4th Machine Gun Battalion. 26TH DIVISION--Major Gen. Clarence R. Edwards, commanding; Lieut. Col. Cassius M. Dowell, Chief of Staff; Major Charles A. Stevens, Adjutant General. 51ST BRIGADE, INFANTRY--Brig. Gen. George H. Shelton; 101st and 102d Regiments; 102d Machine Gun Battalion. 52D BRIGADE, INFANTRY--Brig. Gen. C. H. Cole; 103d and 104th Regiments; 103d Machine Gun Battalion. 51ST BRIGADE, FIELD ARTILLERY--Brig. Gen. D. E. Aultman; 101st Trench Mortar Battery. ENGINEER TROOPS--101st Regiment. SIGNAL TROOPS--101st Field Battalion. DIVISION UNITS--26th Headquarters Troop; 101st Machine Gun Battalion. 32ND DIVISION--Major Gen. W. G. Haan, commanding; Lieut. Col. Allen L. Briggs, Chief of Staff; Major John H. Howard, Adjutant General. 63D BRIGADE, INFANTRY--Brig. Gen. William D. Connor; 125th and 126th Regiments; 120th Machine Gun Battalion. 64TH BRIGADE, INFANTRY--Brig. Gen. E. B. Winans; 127th and 128th Regiments; 121st Machine Gun Battalion. 57TH BRIGADE, FIELD ARTILLERY--Brig. Gen. G. LeRoy Irwin; 119th, 120th and 121st Regiments; 107th Trench Mortar Battery. ENGINEER TROOPS--107th Regiment. SIGNAL TROOPS--107th Battalion. DIVISION UNITS--32d Headquarters Troops; 119th Machine Gun Battalion. 41ST DIVISION (_Sunset_)--Major. Gen. Robert Alexander, commanding; Colonel Harry H. Tebbetts, Chief of Staff; Major Herbert H. White, Adjutant General. 81ST BRIGADE, INFANTRY--Brig. Gen. Wilson B. Burt; 161st and 162nd Regiments; 147th Machine Gun Battalion.