North Korea would effectively be crossing the Rubicon if they were to conduct another nuclear test.
Park Geun-hye Quotes
Park Geun-hye (Korean: 박근혜; Hanja: 朴槿惠; RR: Bak Geun(-)hye; IPA: [pak‿k͈ɯn.hje]; often in English /ˈpɑːrk ˌɡʊn ˈheɪ/; born 2 February 1952) is a former South Korean politician who served as President of South Korea from 2013 to 2017.
Attribution
Quotes and notes from Wikiquote: Park Geun-hye (page history), available under CC BY-SA 4.0.