The article aims to analyze food security from the perspective of international security studies. Russia’s aggression against Ukraine in February 2022 has generated renewed interest in food security. The undeniable links between war and famine have taken on an added dimension in this conflict due to the importance of both warring parties to the global food market. While the way food security is conceptualized points to its indirect relationship with international security, the change that took place in the study of international security after the Cold War recognized socio-economic problems as equivalent of threats to the national security. The analysis allowed the following conclusions. First, food security should be treated as a new research area of international security because it challenges the stability of the global socio-economic system. Second, as the 2008 and 2010–2011 food crises, the COVID-19 pandemic and Russia’s aggression against Ukraine have shown, food insecurity generates threats to international security.