least expected, and at the place where he was least wanted, he was sure
to turn up.[17] The suddenness and speed with which he could move a body
of troops seemed marvelous to ordinary men. His business now was to make
a vigorous dashing foray down the valley. To the westward, Fremont lay
in the mountains, with an army which checked no enemy and for the
existence of which in that place no reasonable explanation could be
given. In front was Banks, with a force lately reduced to about 5,000
men. May 14, Banks prudently fell back and took position in
Strasburg.[18] Suddenly, on May 23, Jackson appeared at Front Royal; on
the next day he attacked Banks at Winchester, and of course defeated
him; on the 25th Banks made a rapid retreat to the Potomac, and Jackson
made an equally rapid pursuit to Halltown, within two miles of Harper's
Ferry. The news of this startling foray threw the civilians of
Washington into a genuine panic, by which Mr. Lincoln was, at least for
a few hours, not altogether unaffected.[19] Yet, though startled and
alarmed, he showed the excellent quality of promptitude in decision and
action; and truly it was hard fortune that his decision and his action
were both for the worst. He at once ordered McDowell to move 20,000
troops into the Shenandoah Valley, and instructed Fremont also to move
his force rapidly into the valley, with the design that the two should
thus catch Jackson in what Mr. Lincoln described as a "trap."[20]
McDowell was dismayed at such an order. He saw, what every man having
any military knowledge at once recognized with entire certainty, and
what every military writer has since corroborated, that the movement of
Jackson had no value except as a diversion, that it threatened no
serious danger, and that to call off McDowell's corps from marching to
join McClellan in order to send it against Jackson was to do exactly
that thing which the Confederates desired to have done, though they
could hardly have been sanguine enough to expect it. It was swallowing a
bait so plain that it might almost be said to be labeled. For a general