During any Command sub-phase, if they are not engaged in combat, this character may attempt to lead their unit in the digging of some fieldworks by making a Leadership test (using their own Leadership). If this test is passed, this character and any unit they have joined becomes 'Entrenched'. An Entrenched unit is considered to be behind partial cover and to be defending a low linear obstacle. Should the unit move for any reason, it is no longer Entrenched.