Which classification of nation-state actors includes those that are unable to fulfill the needs of their population?

The classification of nation-state actors that includes those unable to fulfill the needs of their population is the category of failed or failing states. These states typically experience a breakdown in the provision of basic services, governance, and social order, leading to widespread instability and a lack of effective government control.

Failed or failing states often struggle with significant issues, such as high levels of corruption, persistent poverty, violence, unrest, and failure to provide safety, education, or healthcare for their citizens. This situation not only affects the internal dynamics of the state but can also lead to regional instability and increased risks of conflict, as these states may become breeding grounds for extremism or serve as safe havens for terrorist organizations.

Other classifications, such as core states, transition states, and rogue states, do not specifically emphasize the inability to meet the population's needs. Core states typically possess stable governments and economies that can effectively serve their citizens. Transition states may be in the process of improving governance and meeting citizen needs, while rogue states might pursue aggressive policies contrary to international norms, yet they may still manage to provide for their populations in some capacity.