India's suspension of the Indus Waters Treaty with Pakistan has put the region's water security—and its delicate peace—at greater risk. The treaty, which had divided the crucial Indus river system between India and Pakistan since 1960, is now in limbo after India accused Pakistan of supporting a deadly militant attack in April in Kashmir. India, for the first time in the treaty's history, has said it will not abide by the deal, with officials vowing to cut off what they see as "unjustifiable" water flows to Pakistan. The situation: