This isn't Stop-Loss (an action to prevent airmen from leaving who have already started the process to separate). This is something wholly different and seems to be in keeping the nuclear forces ready. Given the current state of relations with Russia, keeping nuclear forces at a certain level is either to keep Russia from further aggression or a prelude to the US attacking. The US may not have no intention of using a nuclear weapon but if US nuclear forces are drawn to thin, Russia, China or North Korea may feel they can launch a nuclear weapon in retaliation. U.S. Secretary of Defense Chuck Hagel ordered the aircraft carrier USS George H.W. Bush to the Persian Gulf on Saturday to “protect” American lives and interests during terror flare-ups in several Iraqi towns.