If China recovers Russian Far East coast, it will suddenly outflank island chain

This scenario directly undermines Australia's primary strategic doctrine: reliance on the island-chain and allied sea-control to constrain Chinese naval power projection. Loss of Russian Far East to China would create a new arc of Chinese military power north of Japan, forcing Australian defence to contemplate simultaneous threats across multiple vectors and degrading the effectiveness of AUKUS submarine operations in the Western Pacific. The article exposes a critical vulnerability in Australia's alliance architecture—dependence on unstable partner (Russia) geopolitics and the fragility of containment strategies against a rising power willing to exploit great-power fractures.