On a snowy January morning in 1889, a worried servant hacked open a locked door at the remote hunting lodge deep in the Vienna Woods. Inside, he found two bodies sprawled on an ornate bed, blood oozing from their mouths. Crown Prince Rudolf of Austria-Hungary appeared to have shot his seventeen-year-old mistress Baroness Mary Vetsera as she slept, sat with the corpse for hours and, when dawn broke, turned the pistol on himself. A century has transformed...

"The Austro-Hungarian army that marched east and south to confront the Russians and Serbs in the opening campaigns of World War I had a glorious past but a pitiful present. Speaking a mystifying array of languages and lugging outdated weapons, the Austrian troops were hopelessly unprepared for the industrialized warfare that would shortly consume Europe. As prizewinning historian Geoffrey Wawro explains in A Mad Catastrophe, the doomed Austrian conscripts...