日米同盟の国際政治理論-リアリズム・リベラル制度論・コンストラクティヴィズム-

Why did Japan enter three alliance systems in this century? What are the Japanese rationales in forming those alliances, the US-Japan alliance in particular? Are Japanese rationales in forming and staying in alliance the same as those of its Western allies? If not, how and why? Finally, why does the US-Japan alliance survive the Cold War under which the alliance was formed? This article tries to g