Episode 105 of the Irregular Warfare Podcast contrasts security force assistance (SFA) efforts in Ukraine and Afghanistan.   Our guests begin by outlining the significance of security force assistance and its pivotal role in Washington’s wider national security strategy. From there, they delve into a detailed analysis of SFA in both Afghanistan and Ukraine, extracting valuable lessons for policymakers and practitioners to inform future SFA policies. Finally, they end with a deep dive into SFA activities in Eastern Europe, shedding light on the socialization and transactional approaches needed to align incentives and enhance the combat capabilities of the United States’ international partners.