Which form would you need to use for an action taken against personnel?

The correct form for an action taken against personnel is DA Form 4833. This form is specifically utilized for reporting and documenting incidents involving military personnel, particularly in cases of misconduct or disciplinary actions. It serves as a formal record that ensures proper accountability and procedure is followed when assessing an individual's actions within the Army structure.

While the other options have specific uses within the Army, they do not pertain to the documentation of actions against personnel in the same way. DA Form 4780 is not related to personnel actions but deals with different administrative details. UR 190-4 and UF 190-4.1 likely relate to specific regulatory or procedural guidelines but do not serve as the primary form for reporting individual personnel incidents as effectively as DA Form 4833. Understanding the purpose of these forms is crucial in ensuring accurate and compliant procedural documentation in military contexts.