2 Verbs to Use for the Word detrainment

"The fourth division commenced its detrainment at Le Cateau on Sunday, August 23, and by the morning of the 25th eleven battalions and a brigade of artillery with the divisional staff were available for service.

Vive Tommy Atkins!" I witnessed the detrainment of the naval brigades at Vieux Dieu and accompanied them to the trenches north of Lierre.

2 Verbs to Use for the Word  detrainment