Could European navies move away from US weapons systems?

Would European navies move from Mark 41 VLS and LM2500 turbines toward Sylver and MT30 as relations with the United States weaken?

MT30 adoption is plausible, but launcher software, missile integration, and radar maturity make a complete break from American systems much harder; mixed installations are likely.

A shift toward the MT30 is presented as plausible because turbine designs tend to alternate in market dominance and the British engine is mature. Moving away from Mark 41 is harder: Sylver offers useful cold-launch characteristics and the A70 length can accommodate large missiles, but Mark 41 benefits from a much wider integrated weapon set and software ecosystem. Some navies may therefore operate both systems. Radar and combat-system maturity pose a larger autonomy challenge, with Type 45 and Horizon technologies suggested as Europe's strongest starting points for a comparable, though not identical, capability to Aegis. A later return to the subject notes that BAE's American arm makes Mark 41 while BAE also manufactured the Sylver cells fitted to Type 45, illustrating that NATO-era industrial reliance runs in both directions rather than dividing cleanly into American and European systems.