4. At once the division was heavily engaged with all nine battalions in line. On the 13th its place was taken by the 121st Division, and it rested for three or four days in the area southwest of Nesle. On the 16th the division relieved the 204th Division on the line east of Goyencourt-Hill 81, west of Roye-Avre. It was heavily engaged in opposing the French attacks until August 31, when it was withdrawn east of Roye.
5. On September 5 the division relieved the Alpine Corps at Epenancourt. It fell back in a northeasterly direction by Atilly, southeast of Vermand, southeast of Maissemy, Pontruet, and Gricourt. It was relieved about October 8 after losing 2,200 prisoners in August and September.
Scarpe.
6. When relieved, the division went to the Fres-Sancourt area (north of St. Gobain), where it was in reserve. About the 14th it was taken to La Ferte-Chevresis to construct rear positions. It was moved in trucks on the 18th by Sains-Richaumont-Wiege-Villers les Guise-Iron near Etreux. It went into line on the evening of the 18th, relieving elements of the 81st Division. It was engaged until the armistice. The line of retreat was through Boue, Boulogne, Avesnes, Sobre le Chateau. In the last place it was identified on November 10.
At the end the effective strength of the division was greatly diminished, although it had received drafts from the dissolved 201st and 202d Regiments.
VALUE—1918 ESTIMATE.
The division was rated as third class. Throughout 1918 the division was extensively used in important defensive sectors, in which it did fairly well.
80th Reserve Division.
COMPOSITION.
| 1915 | 1916 | 1917 | 1918 | |||||
|---|---|---|---|---|---|---|---|---|
| Brigade. | Regiment. | Brigade. | Regiment. | Brigade. | Regiment. | Brigade. | Regiment. | |
| Infantry. | 80 Res. | 264 Res. | 80 Res. | 264 Res. | 80 Res. | 264 Res. | 80 Res. | 34 Res. |
| 265 Res. | 266 Res. | 266 Res. | 264 Res. | |||||
| 266 Res. | 34 Res. | 34 Res. | 266 Res. | |||||
| Cavalry. | 80 Res. Cav. Detch. | 80 Res. Cav. Detch. | 4 Sqn. 16 Hus. Rgt. | 4 Sqn. 16 Hus. Rgt. | ||||
| Artillery. | 80 Res. Brig.: | 80 Res. Brig.: | 74 Art. Command: | 74 Art. Command: | ||||
| 65 Res. F. A. Rgt. (6 Btries.). | 65 Res. F. A. Rgt. | 66 Res. F. A. Rgt. (9 Btries.) | 66 Res. F. A. Rgt. | |||||
| 66 Res. F. A. Rgt. (6 Btries.). | 66 Res. F. A. Rgt. | 3 Abt. 27 Ft. A. Rgt. (8 and 10 Btries.) | ||||||
| 899 Light Am. Col. | ||||||||
| 900 Light Am. Col. | ||||||||
| 1370 Light Am. Col. | ||||||||
| Engineers and Liaisons. | 80 Res. Pion. Co. | 80 Res. Pion. Co. | (380) Pion. Btn.: | 380 Pion. Btn.: | ||||
| 80 Res. Pont. Engs. | 281 T. M. Co. | 82 Res. Pion. Co. | 82 Res. Pion. Co. | |||||
| 80 Res. Pont. Engs. | 83 Res. Pion. Co. | 83 Res. Pion. Co. | ||||||
| 280 T. M. Co. | 280 T. M. Co. | |||||||
| 308 Searchlight Section. | 96 Searchlight Section. | |||||||
| 480 Tel. Detch. | 240 Searchlight Section. | |||||||
| 480 Signal Command: | ||||||||
| 480 Tel. Detch. | ||||||||
| 24 Wireless Detch. | ||||||||
| Medical and Veterinary. | 1 Ambulance Co. | 542 Ambulance Co. | 542 Ambulance Co. | |||||
| 59 Res. Field Hospital. | 113 Res. Field Hospital. | |||||||
| 114 Res. Field Hospital. | 114 Res. Field Hospital. | |||||||
| Vet. Hospital. | 165 Vet. Hospital. | |||||||
| Transports. | 80 Res. Train Detch. | T. M. Col. | ||||||
| Odd Units. | 80 Res. Cyclist Co. | 80 Res. Cyclist Co. | ||||||