Act as the principal legal advisor to the Commanding General (CG) and Staff; provide all necessary legal advice and support for military justice, administrative and civil law, contracts, fiscal, operational law, and ethics to include the mobilization process (planning, mobilization, deployment, redeployment, and demobilization of Reserve Component (RC) units). In addition, the First Army SJA is a Supervisory Judge Advocate and provides technical supervision and advice to subordinate First Army Division East/West SJAs.