This theoretical academic article examines Napoleon’s 1812 eastern campaign and Germany’s 1941 Operation Barbarossa as structural case studies of threshold miscalculation and systemic overreach under the framework of Social Relativity Theory (SRT). The model proposes that a strategic state shift (ΔS) occurs when the ratio between Accumulated Force (F) and Risk Assessment (I) exceeds the Structural Threshold (B). Both cases reveal similar structural patterns, including prior accumulation of victories, systematic down-weighting of risk and underestimation of the defender’s actual structural capacity. However, differences in state capacity, industrial infrastructure, ideological mobilization and technological scale resulted in a far greater systemic impact in 1941 than in 1812. In particular, the 1941 case demonstrates a Dynamic Structural Threshold, whereby B increased during the war through industrial relocation and adaptive mobilization. The article further argues that Mnemonic Reinforcement (M) functions as an identity-based resilience amplifier rather than a direct strategic factor, while External Force Augmentation contributes to long-term systemic stabilization of the defending side.