It's weird that you don't see the benefit of being effective while moving when your rebuttal includes 'run'. Not to mention that there are plenty of situations where stakes/hills/woods as a static defense don't apply - if you're attacking; if you're sieging; attacking a town, fighting in the streets; if you're not taking part in a large set-piece battle; so on and so forth. If you're part of a small patrol and encounter the enemy, you fight them then and there, no time to plant stakes or move the site of the battle.
Likewise, you need to be able to move around as the battle progresses. There's no point standing behind your stakes if the enemy you need to put pressure on is 200 yards away over a meadow. All the zen-like calmness in the world and impregnable field position isn't going to help you if the enemy doesn't come within range.
Likewise, you need to be able to move around as the battle progresses. There's no point standing behind your stakes if the enemy you need to put pressure on is 200 yards away over a meadow. All the zen-like calmness in the world and impregnable field position isn't going to help you if the enemy doesn't come within range.