Psychological warfare has mostly been introduced in the second world war. Both Axis Powers and Allied used it.= = = Ranidae = = =
s aɪ k ə l ɑ d̠ʒ ɪ k ə l WORD_BOUNDARY w ɔ ɹ f ɛ ɹ WORD_BOUNDARY h ʌ z WORD_BOUNDARY m oʊ s t l i WORD_BOUNDARY b ɪ n WORD_BOUNDARY ɪ n t ɹ ə d uː s t WORD_BOUNDARY ɪ n ð ə WORD_BOUNDARY s ɛ k ə n d WORD_BOUNDARY w ɜː l d WORD_BOUNDARY w ɔ ɹ WORD_BOUNDARY b oʊ θ WORD_BOUNDARY æ k s ɪ s WORD_BOUNDARY p aʊ ə ɹ z WORD_BOUNDARY æ n d WORD_BOUNDARY æ l aɪ d WORD_BOUNDARY j uː z d WORD_BOUNDARY ɪ t WORD_BOUNDARY iː k w ə l z WORD_BOUNDARY iː k w ə l z WORD_BOUNDARY iː k w ə l z WORD_BOUNDARY ɹ æ n ɪ d iː WORD_BOUNDARY iː k w ə l z WORD_BOUNDARY iː k w ə l z WORD_BOUNDARY iː k w ə l z WORD_BOUNDARY