Pakistan, March 29 -- When disputes fester between people, the sane response is conversation. When nations fracture, the same principle applies: talk, negotiate, rebuild. But what happens when one side replaces dialogue with dynamite? For 20 years, the Baloch Liberation Army (BLA) has answered that question with chilling clarity, choosing carnage over conversation. Their latest atrocity, the March 11 bombing of the Jaffar Express, which killed civilians journeying between Quetta and Rawalpindi, isn't just an attack on a train. It's an assault on the very notion of Pakistan as a shared identity.

The Baloch Liberation Army (BLA) has spent two decades scripting Pakistan's pain. Since its emergence in 2000, the group has attacked pipelines, ...