"Russia-Ukraine War First, we use Apple’s WPS to ana- lyze device movements into and out of Ukraine and Russia, gaining insights into their ongoing war that, to the best of our knowledge, have yet to be made public. We find what appear to be personal devices being brought by military personnel into war zones, exposing pre-deployment sites and military positions. Our results also show individuals who have left Ukraine to a wide range of countries, validating public reports of where Ukrainian refugees have resettled."