The indispensable ally — but its reliability is now a variable, not a constant.
Threat dimensions
Military5
Economic28
Technology32
Cyber10
Hybrid16
Energy12
Opportunity dimensions
Trade90
Tech-coop85
Defence-coop92
Alignment72
Relationship trajectory & EU strategy
Short term 0–2 yrs
Indispensable, uncertain
Lock in cooperation; accelerate European strategic autonomy.
Medium term 2–7 yrs
Hedge
Build sovereign enablers (ISR, airlift, air defence, munitions).
Long term 7+ yrs
Enduring, rebalanced
Enduring alliance with reduced one-sided dependency.
Europe's vulnerability: Over-dependence on US enablers & nuclear umbrella; political volatility.
⚡ Key scenario: Administration shift: a transactional/isolationist US drops effective defence reliance toward ~60 and raises EU burden; an Atlanticist administration restores it toward ~95 — so the EU must build autonomy either way.