“…Anecdotal evidence from the personal environment of the EU's first High Representative (at the time, double-hatted as Secretary General of the Council of the EU), Javier Solana, has suggested that the PSC was originally modelled on its more dated NATO counterpart, which may indeed explain some of the parallels between them: Solana had formerly served as Secretary General of NATO, so when ESDP/CSDP structures had to be set up within a short time frame, there has likely been plenty of incentive for him to draw on the modus operandi and organisational culture he had worked in previously. Therefore, together, the NAC and the PSC, including the advisory bodies around them, indeed produce a seemingly neat case of institutional isomorphism ('copying') or mimesis (imitation of an established model) (Reynolds 2010;Juncos 2007) where the design of one, the PSC, was clearly informed by previous experiences with a similar structure, the NAC. Some advanced a historical institutionalist approach to capture the dynamic between the PSC and the NAC, placing more emphasis on the structural factors but essentially also pointing at the way in which the institutional design of one had influenced the other (e.g.…”