Hold the Line (General)

You are trained in defensive techniques against charging opponents.

(Complete Warrior, p. 100)
Originally posted on D&D tools

• Prerequisite Combat Reflexes, base attack bonus +2,
• Benefit You may make an attack of opportunity against a charging opponent who enters an area you threaten. Your attack of opportunity happens immediately before the charge attack is resolved.
• Normal You only get an attack of opportunity against a character that exits a square you threaten.