Military service allows a character to purchase the Military Expertise with up to three (3) ranks. Each rank requires a teacher and applies to any one-handed weapons, bows and crossbows. These ranks do not count toward special skills such as Critical Strikes. A DR equal to the level of Military Expertise applies if the Soldier is using a one-handed weapon and medium shield. This bonus damage stacks with other weapon affinities, but the DR does not.