SINGAPORE — Gemba Koichiro, the minister tasked with devising ways to revive Japan's sagging international influence, recently drew a link between the economic power of a nation and the readiness of other countries to challenge its security interests.

Writing in the latest issue of JapanEchoWeb, he said that the economic decline of Japan appeared to underlie the resurgence of territorial disputes with both China and Russia.

Japan, he explained, had once negotiated with Russia over disputed islands from a position of strength because the Russian economy was weak. Now resource-rich Russia was on the rise, allowing it challenge Japanese territorial claims and achieve sustainable economic growth regardless of Japanese aid.