Military unit or personnel that protects the rear of the main force
A
rearguard
or
rear security
is a part of a
military
force that protects it from attack from the rear, either during an advance or
withdrawal
. The term can also be used to describe forces protecting lines, such as
communication lines
, behind an army.
[1]
Even more generally, a rearguard action may refer
idiomatically
to an attempt at preventing something though it is likely too late to be prevented; this idiomatic meaning may apply in either a military or non-military context.
[2]
Origins
[
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]
The term rearguard (also
rereward
,
rearward
) comes from the
Old French
reregarde
,
[3]
i.e. "the guard which is behind", originating with the medieval custom of dividing an army into three
battles
or
wards
;
Van
, Main (or Middle) and Rear.
[4]
The Rear Ward usually followed the other wards on the march and during a battle usually formed the rearmost of the three if deployed in
column
or the left-hand ward if deployed in
line
.
Original usage
[
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]
The commonly accepted definition of a rearguard in military tactics was largely established in the battles of the late 19th century. Before the mechanization of troop formations, most rearguard tactics originally contemplated the use of
cavalry
forces.
[5]
This definition was later extended to highly mobile infantry as well as mechanized or armored forces.
Narrowly defined, a rearguard is a covering detachment that protects the retreating main ground force element (main body), or column, and is charged with executing defensive or retrograde movements between the main body and the enemy to prevent the latter from attacking or interfering with the movement of the main body.
[6]
[7]
Contemporary usage
[
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]
A more expansive definition of the rearguard arose during the large-scale struggles between nation-states during
World War I
and
World War II
. In this context, a rearguard can be a minor unit of regular or irregular troops that protect the withdrawal of larger numbers of personnel (military or civilian) during a retreat, by blocking, defending, delaying, or otherwise interfering with enemy forces in order to gain time for the remainder to regroup or reorganize. Rearguard actions may be undertaken in a number of ways: defensively, such as by defending strongpoints or tactically important terrain; or offensively, by pre-emptively assaulting with a
spoiling attack
an enemy that is preparing offensive operations.
[8]
Three examples of rearguard actions are:
A
World War I
-era example is the rearguard action fought by small units of the
Serbian Army
to protect retreating Serbian troops, the
royal family
, and Serbian refugees from advancing forces of the
Central Powers
during their
retreat through Albania and Montenegro
in 1915?1916.
[10]
[11]
[12]
The nature of combat in rearguard actions involving combat between armies of nation-states is typically desperate and vicious, and rearguard troops may be called upon to incur heavy casualties or even to sacrifice all of their combat strength and personnel for the benefit of the withdrawing forces.
[13]
[14]
Idiomatic expression
[
edit
]
Fighting or mounting a rearguard action is also sometimes an
idiomatic
expression, outside any military context. That idiom refers to trying very hard to prevent a thing from happening even though it is probably too late.
[2]
An example of a famous rearguard action outside the military context is the effort by Roman emperor
Julian
around 362 A.D. to restore
Paganism
as the state religion instead of Christianity.
[15]
Sportswriters employ the idiom as well.
[9]
[16]
See also
[
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]
References
[
edit
]
- ^
Oxford English Dictionary:
- rearguard n.1.b: A body of troops detached from the main force to bring up and protect the rear, esp. in the case of a retreat. Also fig. and in extended use."
- "rear guard, n.2: Chiefly Brit. The guard at the rear of a railway train."
- ^
a
b
Cambridge Idioms Dictionary
(2nd ed., Cambridge University Press, 2006) via
The Free Dictionary
.
- ^
Murray, James A. H.; Bradley, Henry; Craigie, W. A.; Onions, C. T., eds. (1933).
The Oxford English Dictionary (vol. 8)
(1st ed.). Oxford: Clarendon Press.
- ^
Rogers, Clifford
(2007).
Soldiers Lives through History: The Middle Ages
. Westport: Greenwood. p. 73.
ISBN
978-0-313-33350-7
.
- ^
Burnham, W.P. (Lt.)
Manual of Guard Duty, U.S. Army
, Syracuse, New York: C.P. Bardeen, Publisher (1893) pp. 92?95
- ^
Bond, Paul Stanley (Lt. Col.) and Crouch, Edwin Hunter (1st Lt.), New York: The American Army and Navy Journal (1922)
Tactics: the practical art of leading troops in war
, pp. 247?253
- ^
Headquarters, Dept. of the Army,
5-166: Spoiling Attack
, Army Field Manual FM 3-90 (Tactics) (July 2001), p. 12-25
- ^
Headquarters, Dept. of the Army,
5-166: Spoiling Attack
, Army Field Manual FM 3-90 (Tactics) (July 2001), pp. 5?39, 5?40: A spoiling attack is a defensive attack, undertaken to preempt or seriously impair an expected enemy assault by attacking the enemy while the latter is in the process of assembly or preparation for offensive operations.
- ^
a
b
c
Crowley, Liz and Hand, David.
Football, Europe and the Press
, p. 31 (Routledge 2013).
- ^
Corey, Herbert,
The Serbian Tragedy As I Saw It
, Harper's Monthly Magazine (June 1917), p. 334
- ^
Big Guns Blast Way in Serbia: Population Joins Retreat
, The New York Times, 3 November 1915
- ^
Frucht, Richard (ed.),
Eastern Europe: an introduction to the people, lands, and culture
, Vol. 3,
ISBN
1-57607-800-0
(2005) p. 542: The Serbian rearguard actions allowed some 125,000?145,000 soldiers of
Marshal Putnik
's Serbian Army together with several thousand civilian refugees to reach Adriatic ports in Albania, where they were eventually evacuated, reorganized, and reequipped for the campaign in
Salonika
.
- ^
Sebag-Montefiore, Hugh,
Dunkirk: Fight to the Last Man
, (1st ed.), Cambridge, Massachusetts: Harvard University Press,
ISBN
978-0-674-02439-7
(2006), p. 233
- ^
Bimberg, Edward L.,
World War II: A Tale of the French Foreign Legion
, World War II Magazine (September 1997), p. 32: On 9 June 1940, the
97th Foreign Legion Divisional Reconnaissance Group
, equipped with light armored cars, made a spoiling attack against German armored forces equipped with
Pzkw Mk III
tanks in order to protect the withdrawal of French Forces. In two consecutive assaults, the unit lost all its armored cars, incurring heavy casualties.
- ^
Corey, Melinda and Ochoa, George.
Fitzroy Dearborn Chronology of Ideas: A Record of Philosophical, Political, Theological and Social Thought from Ancient Times to the Present
, p. 47 (Routledge 2013).
- ^
Reavis, Tracey.
The Life and Career of David Beckham: Football Legend, Cultural Icon
, p. 70 (Rowman & Littlefield, 2014).