 In the spring of 1659 a Russian army of 28,600 men according to documents of Razryadny prikaz or 100,000–150,000 according to "The Сhronicle of the Witness" and Sergey Solovyov was dispatched to Ukraine to assist Romodanovsky.The latter numbers are being criticized by modern historians as exaggerated.The army came to the Ukrainian border on 30 January 1659 and stood 40 days till Trubetskoy negotiated with Vyhovsky since the Russian commander had instructions to persuade the Cossacks.