In the post–Cold War period, scholars have considered the Asia Pacific to be ripe for military competition and conflict. Developments over the past decade have deepened these expectations. Across the region, rising military spending and efforts of various states to bolster their military capabilities appear to have created an increasingly volatile climate, along with potentially vicious cycles of mutual arming and rearming. In this context, claims that China's rapid economic growth and surging military spending are fomenting destabilizing arms races and security dilemmas are widespread. Such claims make for catchy headlines, yet they are rarely subject to rigorous empirical tests. Whether patterns of military competition in the Asia Pacific are in fact attributable to a security dilemma–based logic has important implications for international relations theory and foreign policy. The answer has direct consequences for how leaders can maximize the likelihood that peace and stability will prevail in this economically and strategically vital region. A systematic empirical test derived from influential theoretical scholarship on the security dilemma concept assesses the drivers of bilateral and multilateral frictions and military competition under way in the Asia Pacific. Security dilemma–driven competition appears to be an important contributor, yet the outcome is not structurally determined. Although this military competition could grow significantly in the near future, there are a number of available measures that could help to ameliorate or manage some of its worst aspects.
Political parties’ behavior in coalition formation is commonly explained by their policy-, vote-, and office-seeking incentives. From these perspectives, the 20-year partnership of Japan's ruling conservative Liberal Democratic Party (LDP) and its pacifistic Komeito junior coalition partner is an anomalous case. The longevity, closeness, and nature of their unlikely partnership challenges core assumptions in existing theories of coalition politics. LDP–Komeito cooperation has sustained for two decades despite vastly different support bases and ideological differences on fundamental policy issues. LDP leaders also show no signs of abandoning the much smaller Komeito despite enjoying a single-party majority. We argue that the remarkable durability of this puzzling partnership results primarily from the two parties’ electoral incentives and what has effectively become codependence under Japan's mixed electoral system. Our analysis also demonstrates that being in a coalition can induce significant policy compromises, even from a much larger senior partner. Beyond theoretical implications, these phenomena yield important real-world consequences for Japanese politics: especially, a far less dominant LDP than the party's Diet seat total suggests, and Komeito's remarkable ability to punch significantly above its weight and constrain its far larger senior partner, even on the latter's major national security policy priorities.
This article examines whether the Asia-Pacific region’s geopolitical vicissitudes are causing Japan to ‘hedge’ against deepening uncertainty and risk through major strategic realignments or diversification of security and economic ties, as the original hedging literature would expect. It examines trends since 2009 in three domains fundamental to identifying whether shifts are underway in Japan’s strategic orientation vis-à-vis China: security policy (primary), trade/investment, and public opinion. Despite deepening uncertainty (and volatility), especially in ‘the Trump era’, this study finds negligible evidence of hedging behavior: e.g., realigning toward Beijing or adopting a ‘middle position’, much less developing any meaningful security ties with China. Rather, contemporary trends point in the opposite direction: Japan’s China strategy primarily centers on strengthening indigenous deterrence capabilities, bolstering the US–Japan alliance, and diversifying regional security ties beyond Beijing. Even the latter, somewhat paradoxically, aims to deepen ties with Washington and to keep it actively engaged in regional affairs.
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