 Nyorera kupfuurira kweiyi ndima - Pakazosvika 580s, sezvo nzanga dzevaSlav paDanube dzakava huru uye dzakarongeka, uye sezvo vaAvars vakashandisa pesvedzero yavo, kurwisa kwakava kukuru uye kwakaguma nekugara zvachose. Muna 586 AD, varwi vechiSlav vanosvika 100 000 vakarwisa Thessaloniki. Pakazosvika 581, madzinza akawanda echiSlavic akanga agara munyika yakapoteredza Thessaloniki, kunyange zvazvo asina kumbobvira atora guta racho pacharo, achigadzira Macedonian Sclavinia. Sezvo John weEfeso anotiudza muna 581: vanhu vakatukwa vechiSlav vakabuda ndokupamba Greece yose, nharaunda dzakapoteredza Thessalonica, neThrace, vachitora maguta mazhinji nenhare, vachiparadza, kupisa, kupamba, uye kutora nyika yose. Zvisinei, John akawedzeredza kusimba kwekupinda kwevaSlav sezvo akanga akanganiswa nokuvharirwa kwake muConstantinople kubva muna 571 kusvikira muna 579. Uyezve, aiona vaSlav sechishandiso chaMwari chokuranga vatambudzi vevaMonophysite. Pakazosvika 586, vakakwanisa kupamba kumadokero kwePeloponnese, Attica, Epirus, vachisiya chete chikamu chekumabvazuva kwePeloponnese, chaive nemakomo uye chisingasvikike. Mukurwisa kwaMaurice muBalkanMuna 605, kuedza kwekupedzisira kudzorera muganhu wekuchamhembe kwakaitika kubva muna 591 kusvika muna 605, apo kupera kwekunetsana nePersia kwakabvumidza Emperor Maurice kuendesa mauto kuchamhembe. Zvisinei akabviswa pachigaro pashure pokumukira kwemauto muna 602, uye muganhu weDanubian wakaputsika makore gumi nehafu gare gare. 