Answer:
In South Asia, five countries have parliamentary governments, including Bangladesh, Bhutan, India, Nepal and Pakistan. Of these, three are federal republics (India, Nepal and Pakistan), one is a unitary republic (Bangladesh) and one is a constitutional monarchy (Bhutan).
It enabled those two powers to partition Poland between them. It basically paved the way for the joint invasion and occupation of Poland that September. By signing the agreement, Hitler avoided the threat of a major two-front war.
He/she is the first breaking vote in senate.