treaty recognized the following as the Ukrainian People's Republic's boundaries: in the west, the 1914 Austro-Hungarian–Russian boundary, which excluded the Ukrainian Halychyna in the new Ukrainian state; in the north, the line running from Tarnogród, Biłgoraj, Szczebrzeszyn, Krasnystaw, Radzyń Podlaski and Międzyrzec Podlaski in the present Lublin Voivodeship (Poland); Sarnaki, in the present Masovian Voivodeship (Poland) and Kamyanyets and Pruzhany, in the present Brest Voblast (Belarus). The exact boundaries were to be determined by a mixed commission on the basis of ethnic composition and the will of the inhabitants (Article 2). The treaty also provided for the regulated evacuation of the occupied regions (Article 3), the establishment of diplomatic relations (Article 4), mutual renunciation of war reparations (Article 5), the return of prisoners of war (Article 6) and the exchange of interned civilians and the renewal of public and private legal relations (Article 8). Article 7 provided for the immediate resumption of economic relations and trade and also set down the principles of accounting and tariffs. Austria-Hungary and the Ukrainian People's Republic also signed a secret agreement regarding Halychyna and Bukovina. Austria-Hungary agreed to unify by 31 July 1918 into one crownland the areas of eastern Halychyna and Bukovina in which the Ukrainian population predominated, but on July 4, Austria-Hungary annulled the secret agreement under the pretext that Ukraine had not delivered to it the amount of grain promised under the treaty, but it is believed to be really the result of Polish pressure. On the other hand the reason for annulment was that after the Vienna's requested to keep the agreement secret, Sevriuk excited with signing of the Treaty of Brest-Litovsk disclosed the information to the Ukrainians of Lemberg (Lviv). The revelation of the secret in such way led Austria-Hungarians to destroy the copy of the agreement and later denied existence of it in any way, while Czernin soon resigned. The Central Powers signed a separate Treaty of Brest-Litovsk with the Russian Soviet Federative Socialist Republic on 3 March 1918. Russia agreed to recognise the concluded treaty with the Ukrainian People's Republic and to sign a peace treaty with Ukraine immediately to define the borders between Russia and Ukraine without delay, to clear the Ukrainian territory of Russian troops and the Russian Red Guard and to put an end to all agitation or propaganda against the government or the public institutions of the Ukrainian People's Republic (article 6). Aftermath