Although these three levels are instrumental and explanatory in analysing foreign policy, the rise in the number and density of transnational actors (TNAs) has transformed the international system, making interconnectivity outside of traditional state-to-state conduct more likely (Alden and Aran, 2017, 3). It is not always possible to detect one level in different approaches of FPA. While some approaches strictly stick to one level of analysis, others use different levels in the
same analysis even if they feature one of the levels.