Between February 14, 2019 and March 4, 2019, a terrorist attack in Pulwama,\nKashmir followed by retaliatory airstrikes led to rising tensions between India\nand Pakistan, two nuclear-armed countries. In this work, we examine polarizing\nmessaging on Twitter during these events, particularly focusing on the\npositions of Indian and Pakistani politicians. We use a label propagation\ntechnique focused on hashtag co-occurrences to find polarizing tweets and\nusers. Our analysis reveals that politicians in the ruling political party in\nIndia (BJP) used polarized hashtags and called for escalation of conflict more\nso than politicians from other parties. Our work offers the first analysis of\nhow escalating tensions between India and Pakistan manifest on Twitter and\nprovides a framework for studying polarizing messages.\n