The Art of War

by Sun Tzu

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XII. The Attack by Fire



     [Rather more than half the chapter (SS. 1-13) is devoted to 
the subject of fire, after which the author branches off into 
other topics.]

     1.  Sun Tzu said:  There are five ways of attacking with 
fire.  The first is to burn soldiers in their camp;

     [So Tu Mu.  Li Ch`uan says:  "Set fire to the camp, and kill 
the soldiers"  (when they try to escape from the flames).  Pan 
Ch`ao, sent on a diplomatic mission to the King of Shan-shan [see 
XI.  ss. 51, note], found himself placed in extreme peril by the 
unexpected arrival of an envoy from the Hsiung-nu  [the mortal 
enemies of the Chinese].  In consultation with his officers,  he 
exclaimed:  "Never venture, never win! [1]  The only course open 
to us now is to make an assault by fire on the barbarians under 
cover of night,  when they will not be able to discern our 
numbers.  Profiting by their panic, we shall exterminate them 
completely;  this will cool the King's courage and cover us with 
glory,  besides ensuring the success of our mission.'   the 
officers all replied that it would be necessary to discuss the 
matter first with the Intendant.  Pan Ch`ao then fell into a 
passion:   'It is today,' he cried, 'that our fortunes must be 
decided!   The Intendant is only a humdrum civilian,  who on 
hearing of our project will certainly be afraid, and everything 
will be brought to light.  An inglorious death is no worthy fate 
for valiant warriors.'   All then agreed to do as he wished.  
Accordingly,  as soon as night came on, he and his little band 
quickly made their way to the barbarian camp.  A strong gale was 
blowing at the time.  Pan Ch`ao ordered ten of the party to take 
drums and hide behind the enemy's barracks, it being arranged 
that when they saw flames shoot up, they should begin drumming 
and yelling with all their might.  The rest of his men,  armed 
with bows and crossbows, he posted in ambuscade at the gate of 
the camp.  He then set fire to the place from the windward side, 
whereupon a deafening noise of drums and shouting arose on the 
front and rear of the Hsiung-nu, who rushed out pell-mell in 
frantic disorder.  Pan Ch`ao slew three of them with his own 
hand,  while his companions cut off the heads of the envoy and 
thirty of his suite.  The remainder, more than a hundred in all, 
perished in the flames.  On the following day,  Pan Ch`ao, 
divining his thoughts, said with uplifted hand:  'Although you 
did not go with us last night, I should not think, Sir, of taking 
sole credit for our exploit.'  This satisfied Kuo Hsun, and Pan 
Ch`ao,  having sent for Kuang, King of Shan-shan, showed him the 
head of the barbarian envoy.  The whole kingdom was seized with 
fear and trembling,  which Pan Ch`ao took steps to allay by 
issuing a public proclamation.  Then, taking the king's sons as 
hostage, he returned to make his report to Tou Ku."  HOU HAN SHU, 
ch. 47, ff. 1, 2.]]

the second is to burn stores;

     [Tu Mu says:  "Provisions, fuel and fodder."  In order to 
subdue   the   rebellious population of Kiangnan,   Kao   Keng 
recommended Wen Ti of the Sui dynasty to make periodical raids 
and burn their stores of grain, a policy which in the long run 
proved entirely successful.]

the third is to burn baggage trains;

     [An example given is the destruction of Yuan Shao`s wagons 
and impedimenta by Ts`ao Ts`ao in 200 A.D.]

the fourth is to burn arsenals and magazines;

     [Tu Mu says that the things contained in  "arsenals"  and 
"magazines"  are the same.  He specifies weapons and other 
implements, bullion and clothing.  Cf. VII. ss. 11.]

the fifth is to hurl dropping fire amongst the enemy.

     [Tu Yu says in the T`UNG TIEN:  "To drop fire into the 
enemy's camp.  The method by which this may be done is to set the 
tips of arrows alight by dipping them into a brazier,  and then 
shoot them from powerful crossbows into the enemy's lines."]

     2.  In order to carry out an attack, we must have means 
available.

     [T`sao Kung thinks that "traitors in the enemy's camp"  are 
referred to.  But Ch`en Hao is more likely to be right in saying:  
"We must have favorable circumstances in general,  not merely 
traitors to help us."  Chia Lin says:  "We must avail ourselves 
of wind and dry weather."]

the material for raising fire should always be kept in readiness.

     [Tu Mu suggests as material for making fire:  "dry vegetable 
matter, reeds, brushwood, straw, grease, oil, etc."  Here we have 
the material cause.  Chang Yu says:  "vessels for hoarding fire, 
stuff for lighting fires."]

     3.  There is a proper season for making attacks with fire, 
and special days for starting a conflagration.
     4.  The proper season is when the weather is very dry;  the 
special days are those when the moon is in the constellations of 
the Sieve, the Wall, the Wing or the Cross-bar;

     [These are, respectively, the 7th, 14th, 27th, and 28th of 
the Twenty-eight Stellar Mansions,  corresponding roughly to 
Sagittarius, Pegasus, Crater and Corvus.]

for these four are all days of rising wind.
     5.  In attacking with fire, one should be prepared to meet 
five possible developments:
     6.  (1) When fire breaks out inside to enemy's camp, respond 
at once with an attack from without.
     7.  (2)  If there is an outbreak of fire, but the enemy's 
soldiers remain quiet, bide your time and do not attack.

     [The prime object of attacking with fire is to throw the 
enemy into confusion.  If this effect is not produced, it means 
that the enemy is ready to receive us.  Hence the necessity for 
caution.]

     8.  (3) When the force of the flames has reached its height, 
follow it up with an attack, if that is practicable; if not, stay 
where you are.

     [Ts`ao Kung says:  "If you see a possible way, advance;  but 
if you find the difficulties too great, retire."]

     9.  (4) If it is possible to make an assault with fire from 
without, do not wait for it to break out within, but deliver your 
attack at a favorable moment.

     [Tu Mu says that the previous paragraphs had reference to 
the fire breaking out (either accidentally, we may suppose, or by 
the agency of incendiaries) inside the enemy's camp.  "But,"  he 
continues,  "if the enemy is settled in a waste place littered 
with quantities of grass, or if he has pitched his camp in a 
position which can be burnt out, we must carry our fire against 
him at any seasonable opportunity, and not await on in hopes of 
an outbreak occurring within, for fear our opponents should 
themselves burn up the surrounding vegetation, and thus render 
our own attempts fruitless."  The famous Li Ling once baffled the 
leader of the Hsiung-nu in this way.  The latter,  taking 
advantage of a favorable wind, tried to set fire to the Chinese 
general's camp,  but found that every scrap of combustible 
vegetation in the neighborhood had already been burnt down.  On 
the other hand, Po-ts`ai, a general of the Yellow Turban rebels, 
was badly defeated in 184 A.D. through his neglect of this simple 
precaution.  "At the head of a large army he was besieging 
Ch`ang-she,  which was held by Huang-fu Sung.  The garrison was 
very small,  and a general feeling of nervousness pervaded the 
ranks;  so Huang-fu Sung called his officers together and said:  
"In war,  there are various indirect methods of attack,  and 
numbers do not count for everything.  [The commentator here 
quotes Sun Tzu, V. SS. 5, 6 and 10.]  Now the rebels have pitched 
their camp in the midst of thick grass which will easily burn 
when the wind blows.  If we set fire to it at night, they will be 
thrown into a panic, and we can make a sortie and attack them on 
all sides at once, thus emulating the achievement of T`ien Tan.'  
[See p. 90.]  That same evening, a strong breeze sprang up;  so 
Huang-fu Sung instructed his soldiers to bind reeds together into 
torches and mount guard on the city walls, after which he sent 
out a band of daring men, who stealthily made their way through 
the lines and started the fire with loud shouts and yells.  
Simultaneously, a glare of light shot up from the city walls, and 
Huang-fu Sung,  sounding his drums, led a rapid charge,  which 
threw the rebels into confusion and put them to headlong flight."  
[HOU HAN SHU, ch. 71.]]

     10.  (5) When you start a fire, be to windward of it.  Do 
not attack from the leeward.

     [Chang Yu, following Tu Yu, says:  "When you make a fire, 
the enemy will retreat away from it; if you oppose his retreat 
and attack him then, he will fight desperately, which will not 
conduce to your success."  A rather more obvious explanation is 
given by Tu Mu:  "If the wind is in the east, begin burning to 
the east of the enemy, and follow up the attack yourself from 
that side.  If you start the fire on the east side,  and then 
attack from the west, you will suffer in the same way as your 
enemy."]

     11.  A wind that rises in the daytime lasts long,  but a 
night breeze soon falls.

     [Cf.  Lao Tzu's saying:  "A violent wind does not last the 
space of a morning."  (TAO TE CHING, chap. 23.)   Mei Yao-ch`en 
and Wang Hsi say:  "A day breeze dies down at nightfall,  and a 
night breeze at daybreak.  This is what happens as a general 
rule."   The phenomenon observed may be correct enough,  but how 
this sense is to be obtained is not apparent.]

     12.  In every army, the five developments connected with 
fire must be known, the movements of the stars calculated, and a 
watch kept for the proper days.

     [Tu Mu says:  "We must make calculations as to the paths of 
the stars,  and watch for the days on which wind will rise, 
before making our attack with fire."  Chang Yu seems to interpret 
the text differently:  "We must not only know how to assail our 
opponents with fire, but also be on our guard against similar 
attacks from them."]

     13.  Hence those who use fire as an aid to the attack show 
intelligence; those who use water as an aid to the attack gain an 
accession of strength.
     14.  By means of water, an enemy may be intercepted, but not 
robbed of all his belongings.

     [Ts`ao Kung's note is:  "We can merely obstruct the enemy's 
road or divide his army, but not sweep away all his accumulated 
stores."  Water can do useful service, but it lacks the terrible 
destructive power of fire.  This is the reason,  Chang Yu 
concludes, why the former is dismissed in a couple of sentences, 
whereas the attack by fire is discussed in detail.  Wu Tzu  (ch. 
4)  speaks thus of the two elements:  "If an army is encamped on 
low-lying marshy ground, from which the water cannot run off, and 
where the rainfall is heavy, it may be submerged by a flood.  If 
an army is encamped in wild marsh lands thickly overgrown with 
weeds and brambles, and visited by frequent gales,  it may be 
exterminated by fire."]

     15.  Unhappy is the fate of one who tries to win his battles 
and succeed in his attacks without cultivating the spirit of 
enterprise;  for the result is waste of time and   general 
stagnation.

     [This is one of the most perplexing passages in Sun Tzu.  
Ts`ao Kung says:   "Rewards for good service should not be 
deferred a single day."   And Tu Mu:   "If you do not take 
opportunity   to   advance and reward   the   deserving,   your 
subordinates will not carry out your commands, and disaster will 
ensue."   For several reasons, however, and in spite of the 
formidable array of scholars on the other side,  I prefer the 
interpretation suggested by Mei Yao-ch`en alone, whose words I 
will quote:  "Those who want to make sure of succeeding in their 
battles and assaults must seize the favorable moments when they 
come and not shrink on occasion from heroic measures:  that is to 
say, they must resort to such means of attack of fire, water and 
the like.  What they must not do, and what will prove fatal,  is 
to sit still and simply hold to the advantages they have got."]

     16.  Hence the saying:  The enlightened ruler lays his plans 
well ahead; the good general cultivates his resources.

     [Tu Mu quotes the following from the SAN LUEH, ch. 2:   "The 
warlike prince controls his soldiers by his authority, kits them 
together by good faith, and by rewards makes them serviceable.  
If faith decays,  there will be disruption;  if rewards are 
deficient, commands will not be respected."]

     17.  Move not unless you see an advantage;  use not your 
troops unless there is something to be gained; fight not unless 
the position is critical.

     [Sun Tzu may at times appear to be over-cautious,  but he 
never goes so far in that direction as the remarkable passage in 
the TAO TE CHING, ch. 69.  "I dare not take the initiative,  but 
prefer to act on the defensive; I dare not advance an inch,  but 
prefer to retreat a foot."]

     18.  No ruler should put troops into the field merely to 
gratify his own spleen; no general should fight a battle simply 
out of pique.
     19.  If it is to your advantage, make a forward move;  if 
not, stay where you are.

     [This is repeated from XI. ss. 17.  Here I feel convinced 
that it is an interpolation, for it is evident that ss. 20 ought 
to follow immediately on ss. 18.]

     20.  Anger may in time change to gladness; vexation may be 
succeeded by content.
     21.  But a kingdom that has once been destroyed can never 
come again into being;

     [The Wu State was destined to be a melancholy example of 
this saying.]

nor can the dead ever be brought back to life.
     22.  Hence the enlightened ruler is heedful, and the good 
general full of caution.  This is the way to keep a country at 
peace and an army intact.


[1]   "Unless you enter the tiger's lair, you cannot get hold of 
the tiger's cubs."



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