In Greece in 2015, the Syriza party went from 4% to 36% in the polls and formed a government by offering a meaningful alternative to austerity; after five months maintaining this platform, they crashed against international power centers (IMF, ECB, City of London) and held a referendum asking voters whether to continue fighting—62% said yes—yet PM Tsipras surrendered anyway, betraying the popular mandate and destroying the Greek left for a decade.