Supply chains are the less visible parts of many large, global companies, such as Apple, Toyota, and Boeing. For each of these companies, their many suppliers incrementally provide parts that are eventually assembled into finished products, whether they are hand-held smartphones or part of vehicles that transport a few or many people. Disruptions to suppliers can have devastating effects on the ability of a company to complete finished products. The most recent example of this are the shortages in personal protective equipment, e.g., masks, surgical gowns, and face shields, for health-care workers involved in responding to the COVID-19 pandemic. For the Department of Defense (DoD), disruptions to its global supply chain, particularly those suppliers involved in mission-critical products and services, will degrade DoD’s ability to respond when it is called upon. When these disruptions are caused or influenced by climate change, supply chain management under climate change becomes a strategic vulnerability. The probability of a disruption to one or more critical suppliers is never-ending, given their number and dispersed locations around the globe.