Australia's sovereign territory comes under sustained military attack in a major conflict before 2035.

Question

Six frontier AI models put this at 4% by 29 Sept 2036. Full reasoning from every model.

WillHappen.ai · Accepted Answer

4% — the median of 6 frontier models, resolving by 2036-09-29.

Answer

Gemini (Google): 3% — Direct sustained strikes on Australian soil require an all-out global war with China that ignores severe geographic and escalation barriers. No adversary has struck mainland Australia since 1943; doing so requires crossing thousands of kilometers of heavily defended approaches. A Western Pacific conflict over Taiwan would see PLA assets focused on the first and second island chains, not mainland Australian targets. Only long-range hypersonic or nuclear strikes on Pine Gap or northern bases fit the scenario, which risks immediate direct US retaliation.

Answer

Claude (Anthropic): 4% — Hinges on a US-China war over Taiwan escalating to direct strikes on Australian mainland territory. No state has conducted sustained military strikes on mainland Australia since WWII, a very low base rate over a 10-year window. AUKUS raises Australia's target profile via basing (submarines, rotational forces) but adversaries would likely prioritize US assets over Australian soil. A Taiwan or South China Sea war involving China and the US/allies is the main plausible pathway, but even then direct sustained strikes on Australia remain a high…

Answer

GPT (OpenAI): 7% — It turns on a Taiwan or wider US-China war expanding to deliberate PLA strikes on the Australian mainland. China would need to choose escalation against a US ally despite the high risk of US retaliation and nuclear deterrence. Post-1945, no major power has sustainedly struck Australian mainland territory; AUKUS raises targeting incentives but not enough to erase deterrence. Odds would rise sharply if China invaded Taiwan, Australia committed combat forces, and PLA long-range strike deployments surged.

Answer

Grok (xAI): 8% — Turns on China electing to strike Australian mainland in a Taiwan war rather than nearer Pacific targets. PLA must start a declared US/AUKUS war by ~2034 after first hitting Guam/Japan; no peer has struck a distant allied homeland since 1945. US-China shooting-war odds sit ~15-25% by 2035; Australia targeting is a further subset given distance and escalation risk. A Chinese blockade-only or US-only conflict would leave the statement false; only explicit mainland strikes change it.

Answer

DeepSeek (DeepSeek): 4% — This needs a state to deliberately strike the Australian mainland, a step no adversary has taken since 1942. Australia's last mainland attack was Japanese air raids in 1942-43; in 84 years since, no state has repeated it despite Korea, Vietnam, and Cold War tensions. Any attacker would need power projection across thousands of kilometres against a US treaty ally, and China's regional strategy has favoured coercion below the threshold… A Taiwan conflict could draw Australia in via AUKUS basing, but strikes on Pine Gap or northern bases would more likely be limited and deniable than sustained declared…

Answer

Qwen (Alibaba): 2% — No plausible adversary has both the capability and motive to strike mainland Australia before 2035. China's PLA Navy lacks the logistics for sustained strikes on Australia's mainland; no other state has credible reach. Australia's last mainland attack was Darwin 1942; base rate for sovereign territory strikes among allied Western nations is near zero. A full US-China war would need to escalate far beyond any current trajectory to make Australian soil a target rather than a rear base.

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