New Delhi, Aug. 11 -- Armenia and Azerbaijan recently signed an accord around the 35-year-old dispute involving the Nagorno-Karabagh region. A colony of ethnic Armenians, surrounded by Azeris, has seen bloody battles for control, accusations of ethnic cleansing, and environmental horrors. I was thrilled to see leaders from the two countries shaking hands, their gesture of friendship firmly cemented by President Donald Trump's additional clasp. The flames of dispute have been put out by President Trump. The world is overburdened by disputes. Some, like this one, are so old that they don't even grab the headlines anymore. Yet, over time, one dispute has multiplied into others, including, in this case, arguments around sharing river waters. In...