Bahasa Jepangnya “mengandalkan aliansi diplomatik”

aliansi antarnegara; membentuk dan memutus aliansi; mengandalkan aliansi diplomatik

alliance (of the Six Kingdoms against the Qin dynasty, and of individual Kingdoms with the Qin dynasty); (tactic of) making and breaking alliances (to benefit oneself as the occasion demands); resorting to alliances as a diplomatic expedient