It is certain that in all possible cases the rules of tactics and of
field-fortification must be applied by detachments as well as by the
army itself.

Since we have included in the number of useful cases of detachments
those intended for _coups de main_, it is proper to mention a few
examples of this kind to enable the reader to judge for himself. We may
call to mind that one which was executed by the Russians toward the end
of 1828 with the view of taking possession of Sizeboli in the Gulf of
Bourghas. The capture of this feebly-fortified gulf, which the Russians
rapidly strengthened, procured for them in case of success an essential
_point d'appui_ beyond the Balkan, where depots could be established in
advance for the army intending to cross those mountains: in case of
failure, no one was compromised,--not even the small corps which had
been debarked, since it had a safe and certain retreat to the shipping.

In like manner, in the campaign of 1796, the _coup de main_ attempted by
the Austrians for the purpose of taking possession of Kehl and
destroying the bridge whilst Moreau was returning from Bavaria, would
have had very important consequences if it had not failed.

In attempts of this kind a little is risked to gain a great deal; and,
as they can in no wise compromise the safety of the main army, they may
be freely recommended.

Small bodies of troops thrown forward into the zone of the enemy's
operations belong to the class of detachments that are judicious. A few
hundred horsemen thus risked will be no great loss if captured; and they
may be the means of causing the enemy great injury. The small