With only 11 days of LNG reserves and sea lanes controllable by China's navy, Taiwan's extreme energy import dependency is an existential threat. A naval blockade could strangle its economy and shut down its power grid without a single shot being fired.

The most effective deterrent to a Chinese invasion of Taiwan isn't more U.S. technology, but a political commitment from Japan to fight from day one. Japan could bring significant military mass to the conflict in just two to three days, compared to the weeks required for U.S. forces.

A key danger is that China might invade Taiwan not from a position of absolute confidence, but from the belief that its relative power is peaking. This echoes pre-WWI Germany's fear that waiting would only strengthen its adversaries, creating a 'now or never' strategic calculus.

Recognizing the US may be unable or unwilling to defend it, Japan is shifting its strategy. It now explicitly names China as a threat and is building its own "porcupine" defense of unmanned systems to protract a conflict while waiting for US aid.

The most significant recent shift regarding Taiwan is Japan's awakening to the threat. Viewing Chinese control as an existential risk, Japan is rapidly increasing defense spending and rethinking doctrine, fundamentally altering China's strategic calculations and adding a new complicating factor.

A historian analogizes Taiwan's precarious situation to three pre-WWI flashpoints. It's a territorial claim (Alsace), a likely source of a great power crisis (Bosnia), and a strategic calculation for intervention by a global power (Belgium), making it exceptionally volatile.

The Taiwan issue is uniquely dangerous, representing three historical parallels at once: a nationalist territorial dispute (like Alsace), a potential trigger for a wider crisis (like Bosnia), and a test of great power intervention (like Belgium). This combination makes it exceptionally volatile.

A naval and air blockade, or "cordon sanitaire," presents a more dangerous and likely scenario than a direct cross-strait assault. This strategy would force an enormously difficult political and military decision upon the U.S. about whether to break the blockade and come to Taiwan's aid.

The "Japan panic" was rooted in fears of economic subordination—like having a Japanese boss or seeing landmarks bought by Japanese firms. In contrast, anxiety about China is dominated by concerns over direct military conflict and a technological arms race, a much starker form of geopolitical rivalry.