[3] The Polish forces, part of the Austro-Hungarian Army stationed on the border of Bessarabia, were increasingly restless.
[2] The Poles, having received the information about the treaty on February 12, and expecting, in the aftermath of the treaty further weakening of the Polish units, decided on the February 14 to join forces with the Polish First Army Corps in Russia by crossing the Austrian-Russian front lines.
[2] Polish units, mostly the 2nd and 3rd Regiment under the command of Józef Haller de Hallenburg, attempted to break through the Austrian lines on February 15 to 16, 1918.
[2] The Legionnaires won the battle, but estimates of their losses vary: according to historian Jerzy Lerski they suffered "great losses",[1] but Gawlik states there were only 16 casualties, while over 900 soldiers of the Auxiliary Corps and other Polish soldiers from other formations - about 4,000 total - were arrested).
[2] Some (according to Gawlik, about 1,600)[2] of Haller's troops were able to make it through the front lines into already abandoned Russian trenches,[1] and on March 5 were absorbed into the Polish Second Corps,[3] whilst many were captured and imprisoned by the Austrians.