At the height of the Cultural Revolution a Chinese long-range nuclear missile is fired within the country, and the nuclear warhead it is carrying detonates. A French nuclear device is exploded in Algeria during a coup there. The Soviet empire has collapsed, and shots are fired at a Russian crowd intent on rushing a nuclear weapons-laden plane straining to remove a stash of nuclear weapons to a safer locale. Pakistani civilian governments are routinely pushed aside by a powerful, nuclear-armed military that observers worry might yet itself fall prey to a faction willing to seize a portion of...