Nenguva yakafanana, kukundwa kweAxis paStalingrad neNorth Africa, kwakaita kuti kubatana nemapoka anopikisa muBalkans kuve kwakakosha zvikuru. British PM Winston Churchill akanga awana gumi Halifax vabhomba kuwedzera mana Liberators uye kurerutsa chokuendesa zvechiuto rubatsiro uye muna Apr 1943 sub-kutumira pamwe Mihailović kuti vatungamiri muSerbia yose dzakatangwa. Musi wa 27 Chivabvu 1943, Operation Typical, yekutanga yakatsaurirwa basa kuHQ yevagadziri yakadonhedzwa pakakwirira kwekurwisa kukuru kweGerman Operation Schwarz
iro raida kuvaparadza. Nhume dzose dziri mbiri zvino dzakanga dzine vamiriri veAmerica (OSS), yaBailey yakanga ine Kaputeni Mansfield, uye yaDeakin yakanga ine Lieut M.O. Benson.