Einschwenken
Einschwenken (Ger., wheeling in), as opposed to “abschwenken”, redeploying from sub-divisions into a wider front by wheeling, as well as wheeling a single sub-division into alignment with the other sub-divisions.
Source: Rumpf, H. F.: Allgemeine Real-Encyclopädie der gesammten Kriegskunst (Berl. 1827)