Alchemist | Antipaladin | Arcanist | Barbarian | Barbarian (Unchained) | Bard | Bloodrager | Brawler | Cavalier | Cleric | Druid | Fighter | Gunslinger | Hunter | Inquisitor | Investigator | Kineticist | Magus | Medium | Mesmerist | Monk | Monk (Unchained) | Ninja | Occultist | Oracle | Paladin | Psychic | Ranger | Rogue | Rogue (Unchained) | Samurai | Shaman | Shifter | Skald | Slayer | Sorcerer | Spiritualist | Summoner | Summoner (Unchained) | Swashbuckler | Vigilante | Warpriest | Witch | Wizard
Companion | Drake | Eidolon | Eidolon (Unchained) | Familiar | Phantom
Adept | Aristocrat | Commoner | Expert | Warrior

Fighter Class Details | Adv. Armor Training | Adv. Weapon Training | Weapon Groups | Archetypes

Combat Maneuver Defense (Ex)

Source Weapon Master's Handbook pg. 18
When the fighter is wielding weapons from the associated weapon group, his weapon training bonus applies to his CMD against all combat maneuvers attempted against him, instead of just against disarm and sunder combat maneuvers.