Dee ihe na-aga n'ihu maka paragraf a - N'ịgbaso ezumike oge ọkọchị ndị Poland na-aga Vistula, nkewa ahụ chụpụrụ ndị agha Poland. N'August 9 o weghaara Wyszków wee gaa n'ihu n'ebe ugwu Bug, Narew na Vistula n'ebe Łomża. Obodo ahụ dara n'aka ndị Soviet, mana ọgụ nke ọma na Łomża nke ndị Polish 59th "Greater Polish" Infantry Regiment weghaara obodo ahụ. Ndị agha Soviet tụfuru ọtụtụ n'ime ndị ha dọọrọ n'agha. Mgbe agha nke Warsaw gasịrị, e meriri Ngalaba ndị agha nke isii. E wughachiri ya dị ka akụkụ nke nchebe ndị Soviet n'akụkụ osimiri Niemen, ọ sonyere na Agha nke Abụọ nke Osimiri Niemen
Ọ dị mma. E meriri ya n'ebe ọwụwa anyanwụ nke Wilejka site n'aka ndị agha Polish, a gbara ya gburugburu ma kpochapụ ya kpamkpam. Ndị Poland weghaara isi ụlọ ọrụ ya, tabor, kichin 13 na mpaghara abụọ fọdụrụnụ nke egbe agha, yana ndị isi ndị isi nke ndị agha ahụ.