You have trained to watch your allies’ backs, covering them as they make tactical withdraws.
Benefit: An ally who also has this feat provokes no attacks of opportunity for moving through squares adjacent to you or within your space.
Pathfinder Roleplaying Game Ultimate Combat. © 2011, Paizo Publishing, LLC; Authors: Jason Bulmahn, Tim Hitchcock, Colin McComb, Rob McCreary, Jason Nelson, Stephen Radney-MacFarland, Sean K Reynolds, Owen K.C. Stephens, and Russ Taylor.