유인석이 주장한 '연대론'은 당시 지식인 계층에서 널리 회자하던 국제정치 담론으로, 오늘날 지역 안보와 유사한 개념이었다.
The 'solidarity theory' advocated by Yoo In-seok was an international political discourse widely discussed by the intellectuals and was a concept similar to today's regional security.