The goal of this study is to demonstrate that strong intra-military cohesion has significantly enhanced the political strength of the military by binding military officers to military leadership. The elimination of military strongmen after the short-lived democratic period (1973-1976) apparently eroded the Thai military’s organizational coherence. Therefore, this study demonstrates two points: (1) the extent to which the Thai military effectively governs and controls society depends not only on the level of the society’s socioeconomic development but also on the political strength of the military; and (2) the political strength of the military to intervene in domestic politics varies according to the military’s organizational coherence in Thailand.