CIMSEC – As the 21st century’s strategic environment becomes increasingly complex with peer competitors, the enemy’s advanced anti-access/area-denial capabilities, and the proliferation of long-range precision fires, the Navy and Marine Corps must embark on a new phase of naval integration. The CNO, in conjunction with the CMC, should provide guidance on how to enhance maritime lethality to transcend the traditional ARG/MEU construct, thereby forging an integrated naval force capable of securing contested littorals and responding to emergent threats.