Two recent studies have identified seven island nations with the highest probability of surviving a global societal collapse due to their capacity to maintain society and food production. New Zealand is highlighted as the most prepared overall, benefiting from its geographical isolation and self-sufficient resource base. Australia demonstrates strong resilience specifically in scenarios involving nuclear winter, with significant food production capabilities. Despite these strengths, both countries exhibit vulnerabilities stemming from reliance on imports for essential goods. The analyses suggest varying levels of preparedness for different types of global crises. The studies offer a nuanced perspective on national resilience, moving beyond a single preparedness metric. This research provides valuable insight into which regions are best positioned to recover from worldwide systemic failures.