摘要:Security Force Capability Building (SFCB) immediately evokes hands-on and direct training to a host nation’s (HN) developing military force. When I was told I was going to command OP UNIFIER, Rotation (Roto) 6, conducting range events, and providing direct training to Ukrainians were the first things that came to mind. At that moment, I had no idea that Training Development Officers (TDOs) would end up being our most valuable assets, and how understanding and enhancing the structures behind the training would be crucial to our success. Considering what I have learned during this mission, I must admit that I was ill-prepared for this particular type of operation. Hopefully, this article will provide useful insight, not only to future OP UNIFIER rotations, but also to any other Security Force Capability Building missions. First, it is important to not only explain what we have done in our work to enhance the Security Forces of Ukraine (SFU),1 but also the reasoning behind those initiatives. I will then touch on some notable achievements towards developing enduring effects. Finally, I will conclude with some recommendations for future SFCB commanders and leaders.