Supplies issued to troops on the march; hence (Mil.), The place where troops on the march halt over night; also, by extension, the distance marched during a day.
3.
In Russia, a prison or stockade for the confinement of prisoners in transit.
... October in the Etape, at Ghent and at Bruges. The policy spread; the rich industrial districts at Hainaut, the mines and steel works about Charleroi were next attacked, and they seized men in Brabant, even in Brussels, despite some indications and even predictions of the civil authorities ... — Kelly Miller's History of the World War for Human Rights • Kelly Miller