The new-model French Army swept through Europe, country by country, fighting a new kind of warfare, one that depended on rapid movement and, crucially, on the concentrated manpower (and firepower) that those enormous numbers allowed.

NEWYORKER: Slaughterhouse

Busch says now she hears praise for the CAOs from new Gold Star families, and the Army is using the training course as a model for programs at other bases.

NPR: 'Gold Star' Efforts Help Families of Fallen Soldiers