Rear Adm. Martin Muckian reads his orders during a change of command ceremony onboard Naval Station Norfolk. During the change of command, Muckian relieved Rear Adm. Brian Davies as commander of SUBGRUTWO. Submarine Group Two executes integrated multi-domain undersea warfare to advance the art of theater undersea warfare providing our nation fully aware, fully informed, and fully connected undersea warfare forces to remain ready to dominate the warfighting spectrum from great power competition to conflict.