Following the advance of the first day, brigade headquarters was moved forward to a cave in Vierzy.
Col. Logan Feland was in command of the Fifth Regiment during the Aisne-Marne offensive, near Soissons, and continued in command of it with the exception of two days in July, 1918 (when Brig. Gen. Lejeune commanded the Fourth Brigade and Col. Neville the Fifth Regiment), until March 21, 1919, when he was relieved by Col. Harold C. Snyder, who retained command until the date of demobilization.
The Fourth Brigade was relieved about midnight July 19, 1918, and after remaining in a reserve position until July 22, 1918, marched to an area farther in the rear, but still in a reserve position, brigade headquarters being established at Taillefontaine. Alter final relief from this active sector the brigade was billeted July 24-25, 1918, in an area around Nanteuil-le-Haudouin, brigade headquarters being established at Nanteuil. The brigade remained in this area until July 31, 1918.
On July 25, 1918, Brig. Gen. John A. Lejeune arrived, and assumed command of the Fourth Brigade on July 26, 1918, General Orders, No. 16, reading as follows:
I have this day assumed command of the Fourth Brigade, U. S. Marines.
To command this brigade is the highest honor that could come to any man. Its renown is imperishable and the skill, endurance, and valor of the officers and men have immortalized its name and that of the Marine Corps.
Brig. General Lejeune retained command until July 29, 1918, when he became commanding general of the Second Division, relieving Maj. Gen. Harbord, who left to assume command of the Services of Supply. Col. Neville, on this latter date, resumed command of the Fourth Brigade.