By this arrangement, often described as a fourth partition of Poland, the Soviet Union secured almost all Polish territory east of the line of the rivers Pisa, Narew, Western Bug and San.
Ovim ugovorom, koji se katkad navodi kao "četvrta podjela Poljske", SSSR je osigurao gotovo sav poljski teritorij istočno od rijeka Pisa, Narew, Bug i San.