After almost 150 years of murderous wars, East Asia since 1979 has experienced an extraordinary period of peace. The main explanation for the transition from war to peace is that one nation after the other set economic growth as its main priority. This created a need for stability internally and externally.
Tønnesson, Stein (2015) Explaining East Asia's Developmental Peace: The Dividends of Economic Growth, Global Asia 10 (4): 10–15.