In 1940 the OUN split into two parts. The older, more moderate members supported Andriy Melnyk and the OUN-M, while the younger and more radical members supported Stepan Bandera's OUN-B. After the start of the Axis invasion of the Soviet Union on 22 June 1941 (Operation Barbarossa), the OUN-B in the person of Yaroslav Stetsko declared an independent Ukrainian state on 30 June 1941 in occupied Lviv, while the region was under the control of Nazi Germany.[1] In response, the Nazi authorities suppressed the OUN leadership.