<prompt> Translate the following text to EnglishMkataba huo ulikuwa na kifungu cha siri kilichotoa kwa ajili ya kugawanywa kamili kwa Poland kati ya Ujerumani na Urusi, ingawa Poland ilikuwa imesaini mikataba ya miaka kumi ya kutoshambulia na wote wawili.  <response>: In the agreement was a secret clause providing for the eventual full partition of Poland between Germany and Russia even though Poland had signed 10-year non-aggression pacts with both. 