However, it might be the best means of resisting alien control in certain types of circumstance (e.g. total occupation by a super-power, attack by a liberal democratic state, occupation with the aim of economic exploitation; or occupation of urban and highly developed areas)."[9] Since the end of the Cold War the idea of defence by civil resistance has been pursued in a number of countries, including the Baltic states. However, with the partial and limited exception of Sweden, it has generally not attracted support from major political parties, and it has not been adopted as a major plank in the security policy of any country.[10] In a 2009 survey of various studies of the viability of defence by civil resistance, Adam Roberts concludes by raising a question, not about the utility of civil resistance generally, but about its capacity to be a complete substitute for military force.[11]