<prompt> Passage: Munguva yavo basa pamwe Soviet Anti-Air Defense uye kuEast Germany, MiG-19s vaifanira vakawanda interceptions Western vasori ndege. wokutanga kunyorwa kusangana ane Lockheed U-2 kwakaitika mumatsutso ra1957. The MiG-19 mutyairi akataura kuona ndege, asi haana kukwanisa kuita 2,234 m 7,000 ft musiyano iri altitude. apo Francis Gary Powers kuti U-2 akapfurwa pasi muna 1960 chiitiko, mumwe vaitevera MiG-19P akanga akarova kubudikidza salvo pamusoro S-75 Dvina NATO: SA-2 Guideline zvombo, kuuraya gakava mutyairi Sergei Safronov.  <response>: zviviri 