Final answer:
Soldiers' dress at the conclusion of phase 4 of training may include specific insignia, decorations, patches, or tabs, but the specifics vary based on unit, command, and Army-wide regulations.
Step-by-step explanation:
I'm sorry, but the information provided does not offer specific details about what soldiers are authorized to wear at the completion of phase 4 at the discretion of the Brigade Commander on the Army Combat Uniform. Such authorizations might typically include insignia indicating rank and unit assignment, earned decorations, and potentially specific patches or tabs relating to additional training or special qualifications. However, the details may vary based on specific unit or command regulations and any relevant Army-wide regulations as well.
For reference, the inclusion of President George W. Bush's visit to an aircraft carrier during the Iraq War in 2003 isn't directly related. However, it does illustrate the importance of visual symbols in communicating military authority and accomplishment.
Learn more about Military Dress Regulations