The United States commences a military invasion of Cuba in 2026.

Question

Six frontier AI models put this at 1% by 1 Jan 2027. The market says 6%. Full reasoning from every model.

WillHappen.ai · Accepted Answer

1% — the median of 6 frontier models, resolving by 2027-01-01.

Answer

Gemini (Google): 0% — An unprovoked, full-scale US amphibious invasion of Cuba within 2.5 months has zero strategic logic or political preparation. No amphibious invasion fleet or forward staging has been mobilized, an operational requirement taking months of visible logistics. The US has avoided direct territorial conflict with Cuba since 1961, preferring economic sanctions and diplomatic pressure. Only an unprecedented, massive direct attack on the US homeland attributed to Havana could trigger an invasion by December 31, 2026.

Answer

Claude (Anthropic): 1% — No credible mobilization, diplomatic signals, or congressional authorization points toward a US ground invasion of Cuba in 2026. Launching a land invasion requires massive military buildup, congressional/executive authorization, and public justification, none of which exist as of Oct 2026. Historical base rate for US invading a specific sovereign nation in any given year is extremely low, and no crisis analogous to 1962 is present. Only a sudden catastrophic escalation (e.g., Cuban attack on US assets) could change this, and no such signal is evident.

Answer

GPT (OpenAI): 2% — Absent an acute provocation or regime-collapse crisis, Washington has little incentive to start a territorial war in 77 days. A US president and military chain of command could act quickly, but an invasion would require visible force staging and political preparation. Post-1945 US invasions of nearby states are rare, and Cuba has not faced one despite decades of hostility and sanctions. I would raise this sharply on confirmed large-scale US amphibious deployments, evacuation orders, or a Cuban crisis inviting intervention.

Answer

Grok (xAI): 1% — No invasion force or political decision exists with 11 weeks left in 2026. Congress, DoD, and the President would need to authorize and stage a major amphibious/air campaign; none of that is underway. US has not invaded Cuba since 1961; comparable windows show near-zero base rate absent a Cuban attack on US forces. A sudden Cuban missile crisis-level event would be required to reverse this; none is visible.

Answer

DeepSeek (DeepSeek): 2% — With 77 days left and no invasion force massing, this turns on whether any mobilization exists at all. An invasion needs carrier groups, amphibious ships and tens of thousands of troops staged; no such buildup near Cuba has been reported as of October 2026. Congress would have to authorize or at least fund it, and the War Powers clock plus Florida politics make a surprise 2026 launch nearly impossible. Base rate for US invasions of sovereign states is roughly one per decade, and Cuba has been deterred since 1962; this case sits far below even that.

Answer

Qwen (Alibaba): 1% — No political will, no buildup, and only ~11 weeks remain in the resolution window. No credible reporting of troop mobilization, amphibious staging, or political authorization for a Cuba operation as of mid-October 2026. Even the most hawkish US factions have pursued sanctions/diplomatic pressure on Cuba, not military regime change; base rate of US invasions of Caribbean states since… A full-scale invasion requires months of visible logistics buildup (shipping, air assets, basing rights) that would be impossible to conceal with only 11 weeks left.

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