"As Yemen's internal war continues to drag on with no end in sight, there is increased risk of miscalculations that may lead to further escalation and internationalization of the conflict. Increased regional and international geopolitical competition, continued efforts to combat the threat of international terrorism and Islamic extremism emanating from the region, and maritime security concerns that threaten the global economy and freedom of navigation have only increased Yemen's strategic importance to the national security agendas of regional and international actors alike. Such considerations have not been lost on Yemen's domestic incumbent and insurgent elites, contributing, in part, to political and military strategies that seek to manage but not entirely eliminate internal security threats that pose challenges to the national security interests of regional and international actors. As such, Houthi expansionism and the ongoing internal war may be better understood in the context of the development of a domestic elite strategic culture that has contributed to perpetual insecurity and internal war in Yemen."
Marine Corps University (U.S.). Middle East Studies: https://www.usmcu.edu/
MES Insights (June 2017), v.8 no.3