For more than a century from 1900 to 2006 campaigns of nonviolent resistance were more than twice as effective as their violent counterparts in achieving their stated goals By attracting impressive support from citizens whose activism takes the form of protests boycotts civil disobedience & other forms of nonviolent noncooperation these efforts help separate regimes from their main sources of power & produce remarkable results even in Iran Burma the Philippines & the Palestinian Territories Combining statistical analysis with case studies of specific countries & territories Erica Chenoweth & Maria J Stephan detail the factors enabling such campaigns to succeed & sometimes causing them to fail They find that nonviolent resistance presents fewer obstacles to moral & physical involvement & commitment & that higher levels of participation contribute to enhanced resilience greater opportunities for tactical innovation & civic disruption (and therefore less incentive for a regime to maintain its status quo) & shifts in loyalty among opponents' erstwhile supporters including members of the military establishment Chenoweth & Stephan conclude that successful nonviolent resistance ushers in more durable & internally peaceful democracies which are less likely to regress into civil war Presenting a rich evidentiary argument they originally & systematically compare violent & nonviolent outcomes in different historical periods & geographical contexts debunking the myth that violence occurs because of structural & environmental factors & that it is necessary to achieve certain political goals Instead the authors discover violent insurgency is rarely justifiable on strategic grounds