NSI has released two reports supporting the US Strategic Command's comprehensive study on 21st Century Strategic Deterrence Frameworks (SDF). These analyses, produced by MESA Group researchers, examine deterrence from both American and Russian perspectives through 'United States Deterrence Policy: 1944-Present' and 'Evolution of Deterrent Thinking in USSR and Russia: A Look through Military Reports.' The research evaluates current deterrence frameworks, identifies their shortcomings in today's security environment, and proposes alternative deterrence models to address emerging global challenges. This work advances US Strategic Command's mission to develop more effective deterrence strategies for contemporary threats.