A “new normal” will require Marines to reinforce embassies and quell small crises on a more frequent basis, and to do so the Marine Corps will need a heftier at-sea presence than it currently has–most notably, Marines want their next class of amphibious ship to more closely resemble the San Antonio-class LPDs nearing the end of production. Lt. Gen. Kenneth Glueck, deputy commandant for combat development and integration, told reporters at a Defense Writers Group breakfast Thursday that a Special…