These feats are inspired by some ideas I have had about reach weapons (which probably are not new) and some feats I encountered while playing in my first Conan RPG game this last weekend (which was pretty fun I should add).
You have been trained to fight in formation and function as a unit. Such training instructs combatants to protect the soldiers next to them and to move in unison.
Benefit: If you and an ally with this feat are adjacent to one another, you both receive a +1 circumstance bonus to your AC as well as to attack rolls. Multiple adjacent allies with this feat do not provide additional bonuses.
Improved Infantry Tactics
You have mastered the technique of fighting in formation.
Prerequisite: Infantry Tactics.
Benefit: The bonus gained from having adjacent allies with the Infantry Tactics feat improves to +2.
Pole & Shield
Elite phalanx units have been trained to control their shield while wielding polearms and spears.
Prerequisite: Str 13, Infantry Tactics, Shield Proficiency, Weapon Proficiency (chosen polearm).
Benefit: You may wear a heavy shield and gain half its shield bonus to your AC when wielding glaives, guisarmes, halberds, longspears, pikes, ranseurs, or spears.
Normal: Without this feat, you cannot wear shields while using a two-handed weapon.
You have learned to keep opponents from getting within the reach of your polearm.
Prerequisite: Weapon Focus (chosen polearm).
Benefit: Anytime you are wielding a glaive, guisarme, halberd, longspear, pike, ranseur, or spear and succeed with an Attack of Opportunity for an enemy moving through spaces you threaten, instead of dealing full damage, you may choose to deal half damage and push the target 5 feet away from you.