This thesis examines the role of sovereignty in foreign military interventions, utilizing a comparison of Russian foreign military interventions in de facto states to those in internationally recognized states. Through a qualitative approach combining English and Russian news sources, political documents, and statements from key political figures, the study identifies that the difference between these types of interventions is slight. The motivations were similar across the cases, while there were variations in conduct and effect. These findings suggest that sovereignty plays a minor role in foreign military interventions and that foreign military interventions increase the reliance of a de facto state on its patron