<prompt> Qedela umusho olandelayo: waba yilungu le-IMRO. Ngo-1900 waba unobhala eqenjini lika-Andon Kyoseto, kwathi ngo-1901 uDechev waba ngumsizi we-voivode kaHristo Chernopeev esifundeni saseGorna Dzhumaya. Ngo-1901, kanye noHristo Chernopeev noYane Sandanski, wabamba iqhaza ekuthumbeni u-Ellen Maria Stone. Ngo-1902 uDechev waqokwa njengo-voivode waseVeles, lapho iqembu lakhe langena khona ngo-Ephreli futhi lasungula amanethiwekhi ekomidi. Uphikisana nezenzo zama-guerrilla endawo asekela amaSerbia esifundeni futhi wabamba iqhaza ezimpini nabo. Ngemva kwesinqumo sokuvusa Ukuvukelwa Kwe-Ilinden ngoJanuwari 1903, uNikola Dechev wafika eBulgaria. ESofia wahlangana noHristo Tatarchev noHristo Matov, ngaleso sikhathi ababengabameli bangaphandle be-IMRO. Wabuye wabuyela eStara Zagora, lapho ahlangana khona nomholi we-IMRO u-Ivan Garvanov. NgoMashi 1903 waya eKyustendil, lapho kwakhiwa khona iqembu lesibili likaVeles ngaphansi komyalo wakhe. Wangena eMakedoniya, lapho ngo-April kwaba khona impi enkulu nebutho laseTurkey elivamile. Ngemva kokulahlekelwa okukhulu okutholwe yiqembu likaNikola Dechev, wabuyela eBulgaria. Ehlobo lalowo nyaka, wabamba iqhaza emhlanganweni  <response>: I-Ilinden-Preobrazhenie Uprising, izama ukungena ngaphakathi kweMakedoniya neqembu elisha ngoSepthemba. Ngo-September 25, azungezwa futhi alwa kanzima eduze nedolobhana laseLukovo Kratovo. Ekulweni nezinkulungwane eziningana zamasosha aseTurkey, kwawa izisulu ezingaphezu kwezingu-30, kufaka phakathi uDechev, kanti okusele kwadonsa ebusuku emngceleni wePrincipality of Bulgaria. 