|Sun Tzu said:
3. After crossing a river, you should get far away from it.
boundaries that are difficult to cross easily. It is hence easy to
become trapped against a river.
Likewise, any boundary can result
in you being hemmed in. Boundaries can also be defensive,
particularly when enemies cannot cross them.
|4. When an invading force crosses a river in its onward march, do not advance
to meet it in mid-stream. It will be best to let half the army get across, and
then deliver your attack.
||If you try to meet
the enemy as they start crossing the river, they may retreat or fire
at you from the other bank.
If you let as much of the opposing
force cross that you can easily defeat, then you can complete this
task whilst the remaining force struggles to cross the river.
dividing their army in this way, you can defeat a superior force.
This is just one variant on the 'divide and conquer' principle.
|5. If you are anxious to fight, you should not go to meet the invader near a
river which he has to cross.
||If the enemy sees you
coming and are able to cross the river before you arrive, then they
can use the previous tactic, defeating you when a smaller force has
crossed the river.
|6. Moor your craft higher up than the enemy, and facing the sun. Do not move
up-stream to meet the enemy. So much for river warfare.
||Upriver is like
uphill. When your boats are upriver, you can use the current to
sweep down on them. You can also drift quietly down at night to
Always use the natural advantages that terrain may offer you.