<prompt> Nyorai kupfuurira kweiyi ndima - Rostropovich akaridza paThe Proms pausiku hwaAugust 21, 1968. Akaridza neSoviet State Symphony Orchestra kwaiva kutamba kwokutanga kweorchestra paProms. Purogiramu yacho yaiva neCello Concerto in B minor yomunyori weCzech Antonín Dvořák uye yakaitika pazuva rimwe chetero iro Warsaw Pact yakapinda muCzechoslovakia  <response>: kugumisa Tsime raAlexander Dubček rePrague. Pashure pokuratidzira, uko kwakanga kwatangirwa nokunyombwa nokuratidzira, boka ravaimbi nomuridzi wemba vakakwaziswa navateereri veProms. Rostropovich akamira ndokusimudza nziyo dzaDvořák dzomutungamiriri wacho sechiratidzo chokubatana nenyika yomunyori uye guta rePrague. 