The international normative prohibition against unconstitutional changes of government that emerged after the Cold War. Institutionalized through AU Lomé Declaration (2000), OAS Inter-American Democratic Charter (2001), and UN General Assembly resolutions. Tansey (2017) documents the norm's rise and argues it has meaningfully reduced coup frequency post-1991. However, Tansey also warns of 'norm fading' as recent coups (2020s Sahel wave) face weaker international responses.