Military. to bend or curve back (the flank units of a military force) so that they face generally to the flank rather than the front.
refuse. Dictionary.com. Dictionary.com Unabridged (v 1.1). Random House, Inc.http://dictionary.reference.com/browse/refuse (accessed: August 08, 2009).
It is not surprising that McClellan did not immediately decide to employ his left wing under Franklin to relieve Harpers Ferry. In focusing on Frederick for the past several days, the Federal right had not only advanced quicker and farther, but the left had angled northward toward Frederick. In consequence Burnside was now considerably nearer Harpers Ferry than Franklin. Moreover, McClellan needed to refuse his left flank along the Potomac until he learned the meaning of the rumor that Jackson had recrossed the river at Williamsport. Lincoln may have jumped to the conclusion that the Confederates were retreating, but the possibility of a turning movement could not be dismissed lightly.
1. Joseph L. Harsh, Taken at the Flood : Robert E. Lee and Confederate Strategy in the Maryland Campaign of 1862 / [book on-line] (Kent, OH: Kent State University Press, 1999, accessed 8 August 2009), 209-210; available from Questia, http://www.questia.com/PM.qst?a=o&d=102364919; Internet.