3e SRD:Martial Weapon Proficiency
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Martial Weapon Proficiency [General]
Benefit: The character makes attack rolls with the weapon normally.
Normal: A character who uses a weapon without being proficient with it suffers a -4 penalty on attack rolls.
The character can gain this feat multiple times. Each time the character takes the feat, it applies to a new weapon.A cleric whose deity's favored weapon is a martial weapon and who chooses War as one of his domains receives the Martial Weapon Proficiency feat related to that weapon for free, as well as the Weapon Focus feat related to that weapon.