with German administration and even Nazi security police and SIPO representatives met several time with Borovets' UPA to negotiate future cooperation; such meetings did not have any known results. During the autumn and winter of 1942, Borovets also conducted negotiations with Soviet partisans and reached tricky "non-aggression" agreement, which lasted until February 1943. Borovets' UPA refused to conduct military operations against Poles. Borovets tried to negotiate with Polish leaders, but did not succeed - the Poles agreed to recognize an independent Ukraine only within the borders of 1939, and for Western Ukraine they promised only autonomy. In the spring of 1943 skirmishes between Ukrainians and Poles began, and often the murders were the results of conflicts between the neighbors. Borovets was unable to stop interethnic conflict and a third front, the Polish one, was opened for the UPA. By the end of February 1943, the Bandera wing of the Organization of Ukrainian Nationalists(OUN-B) decided to create its own military formation. While conducting negotiations with Borovets about cooperative actions (in fact demanding that Borovets' units be placed under direct OUN-B control) on March 20, 1943 OUN (Bandera wing) issued an order about own military formation creation "using Bulba's military personnel". Such "formation" often involved forcible acquiring of Bulba units. Because Bulbas UPA was well known and popular amongst the local population, the commander of the OUN-B military formation Dmytro Klyachkivsky issued an order renaming the OUN-B military detachments as UPA. Thus, from May 1943 two Ukrainian nationalistic forces shared a common name, the Ukrainian Insurgent Army (Ukrayins'ka Povstans'ka Armiya," or "UPA"), without merging into one army. Ukrainian People's Revolutionary Army To separate his own military formations from such actions on the 20th (or 27th) of July 1943 Bulba issued an order renaming his own UPA into the Ukrainian People's Revolutionary Army (the name which OUN-B had adopted in 1941 for future Ukrainian army in Bandera's Ukraine). At the end of June 1943 the OUN-B issued an order according to which all Ukrainian nationalistic formation must follow the command of the OUN-B. That order lead to military actions of UPA/OUN-B against UPRA. In August, many of Bulba's units were absorbed, disarmed or disbanded, and many commanders were killed by UPA Security Service – SB. On 18 August 1943, Borovets and the UPRA headquarters was surrounded and ambushed by several UPA battalions. Some of UPRA command were captured, some killed – including Borovet's