Despite historic clashes, Roman Catholic and Protestant leaders have come together during the pandemic around Brexit, the legacy of the Troubles, and other issues that span both sides of the border. Leaders from Ireland’s main Christian traditions will host a “Service of Reflection and Hope” in Armagh, Northern Ireland on October 21, 2021, marking 100 years since “the partition of Ireland and the formation of Northern Ireland.” But the churches’ service has become controversial, underscoring tensions that linger on both sides of the border. In September, the president of Ireland, Michael D. Higgins, said he would decline his invitation because…