23. Defence in depth defeats concentrated attacks at minimal risk.

Defense in depth expands killing potential by prolonging ranged exposure while at the same time reducing the threat potential of concentrated attacks and their splash affects upon your defences. 

1. The longer the opportunity your guns have to fire at a target, the greater the damage they will deal.

2. Dispersed defences take much longer to kill since the enemy must move between point defences, and in fact a lone point defence will often be ignored by an enemy player. The travel time between the defences will increase the weapons exposure time.

3. If all of your defences are concentrated they are very vulnerable to overwhelming concentrated attacks. However, a horde of t1 bombers will accomplish little if your defences are dispersed.

22. Dispersion allows near unlimited damage absorption.

When forces are concentrated, they may be encircled and systematically eliminated.  When forces are dispursed, they must be individually hunted down and destroyed.  While the aggressor is able to destroy anything encountered, the defender is able to replace and reposition anything that is destroyed.  In this way, the defender only loses assets in a short term timeline.  Further, the defender may constantly harass aggressive forces making their assault excessively costly.  So long as the offensive ability of the assaulting forces is not increased, the defender may retreat and replace his assets indefinitely.

18. It is easier to defeat a one thousand-man army than it is to defeat a thousand one man armies.

A concentrated enemy is always cheaper to defeat than a dispersed enemy.  Dispersion will force priority selection.  Often less important priorities will be neglected entirely.  If any attack is neglected by the defender, then that attack will always succeed.  A defender with a limited defence capability will neglect all but the most important targets.  Balance your total dispersion with localized concentration and you will always have force superiority where it matters.

When attacked by a greater force, disperse your force.  Your enemy will either disperse his own force in an attempt to destroy your detachments or ignore your tactic entirely.  Only re-concentrate your forces where you can have force superiority over his detachments.  If your enemy does not disperse his force, then you must harrass his lesser defended assets to maintain his force’s moving from point to point in his own territory (rather than steam rolling through your assets).  Even attacking with singular units on alternating sides of his force may cause him to halt his advance (while he eliminates your forces one at a time).