Commander trait

Unbreakable Sentinel

add_trait unyielding_defenderremove_trait unyielding_defender

Trait ID unyielding_defender. Console commands work with the debug mode on (launch option -debug_mode, then the ` key) and act on the character you play.

A Defender knows one thing above all else: this is as far as the enemy goes.

Effects

Friendly Fatal Casualties-10%

Defensive Specialist experience

The trait grows with experience on its track; these effects come on top of the base ones at each threshold.

At 33 XP

Friendly Fatal Casualties-10%

At 66 XP

Advantage+1
Friendly Fatal Casualties-10%

At 100 XP

Bonuses from culture and faith

Extra effects this trait gives only when the character's culture or faith has one of these.

Culture with Winter Warriors

Advantage in Provinces affected by Winter+1

Culture with Forest Fighters

Culture with Jungle Warriors, Bush Hunting or Royal Army

Minimum Battle Roll in Jungle+1

Culture with Mountaineers, Mountain Skirmishing, Mountain Herding, Caucasian Wolves, Himalayan Settlers or Mountaineer Ruralism

Culture with Warriors of the Dry, Mubarizun, Desert Ribats or Bush Hunting

Culture with Highland Warriors or Upland Skirmishing

Minimum Battle Roll in Hills+1

Faith with Sacred Mountains

Source: game/common/traits/00_traits.txt and the English localisation, Crusader Kings III 1.20.0.3.