Abstract: People depend on human infrastructure for a range of activities in their daily lives, such as work and socializing. In this paper we consider three different intertwined types of infrastructures of a society that may be affected in crisis situations: The physical, technological, and human infrastructures. We argue that when the human infrastructure is damaged, e.g. in a natural catastrophe or war, then people can switch reliance to the technological infrastructure to be resilient. We conducted an empirical study of 85 people who lived in war zones during the 2006 Israeli-Lebanon war and the ongoing Gulf war in Iraq. In this paper, we report how information technology is used by our informants in new ways in their attempt to maintain social relationships and continue working. Our informants also used technology to help navigate safe routes for travel and for psychological support. We discuss implications of our results for disaster research.