In this culturally combative era, the notion that warring parties can set aside grievances for even a single evening of peace can feel like a hopelessly naive dream. Thankfully Theater Latté Da is returning to the Pantages Theatre to dispel dour pessimism with a hope-restoring holiday production of All Is Calm. Being staged for its 10th year, the acclaimed work draws upon a number of documented instances from World War I in which Allied and German soldiers, having pinned one another down in their respective trenches, spontaneously opted to set aside their weapons for a Christmas Eve armistice. Transforming the battlefield into a scene of comradery, the sworn rivals sang carols, swapped stories, buried their dead, and played a soccer match. Though extraordinary, these Christmas ceasefires have been memorialized in the letters, journals, and other primary source materials that Peter Rothstein, artistic director of Theater Latté Da, drew upon in creating his modern-day holiday classic. Acting on a starkly designed set evoking a desolate evening on the frontlines, the 12-person cast gives voice to the weary soldiers with harmonious renderings of songs curated from around the globe. With a diversity of languages unified by a common longing for peace, All Is Calm offers a timely reminder that even at our most conflicted, we remain inextricably linked by our shared humanity.