British Empire The Battle of the Selle (17–25 October 1918) took place between Allied forces and the German Army, fought during the Hundred Days Offensive of World War I.

Field Marshal Douglas Haig, aware that the Germans were near exhaustion, initiated a series of operations designed to get British troops in strength across the river and clear a way for a move against the Sambre–Oise Canal, a further 5 miles (8.0 km) to the east.

Following a two-day pause, to bring up heavy artillery, the attack was renewed on 23 October with a major combined assault by Fourth, Third and First Armies; the fighting, which continued into the next day, resulted in further advances.

Field Marshall Sir Douglas Haig sent the Commander of the II American Corps a congratulatory message on 20 October acknowledging the AEF contributions to the battle.

"all ranks of the 27th and the 30th American Divisions under your command displayed an energy, courage, and determination in attack that proved irresistible... You have earned the lasting esteem and admiration of your British comrades in arms, whose success you have so nobly shared."