A:	It's to defend the nation against external evils.
ʌ WORD_BOUNDARY ɪ t s WORD_BOUNDARY t ə WORD_BOUNDARY d ɪ f ɛ n d WORD_BOUNDARY ð ə WORD_BOUNDARY n eɪ ʃ ə n WORD_BOUNDARY ʌ ɡ ɛ n s t WORD_BOUNDARY ɛ k s t ɜː n ə l WORD_BOUNDARY iː v ə l z WORD_BOUNDARY