On 10 April, the Central Committee of the Communist Party of Yugoslavia (Serbo-Croatian Latin: Komunistička partija Jugoslavije, KPJ) had appointed a military committee headed by its secretary-general, Josip Broz Tito.[4] From April, the KPJ had an underground network right across the country, including military committees that were preparing for an opportunity to initiate a revolt.[5] In May, the KPJ outlined its policy of "unity and brotherhood among all peoples of Yugoslavia, [and] relentless struggle against the foreign enemies and their domestic helpers as a matter of sheer survival".[6] On 23 June, immediately following the Axis attack on the Soviet Union, the KPJ decided to launch their armed struggle, and in the following week a KPJ operative visited the Rasina District Committee to organise a detachment of the Yugoslav Partisans.