Arms sales and defense commitments withheld as explicit 'negotiating chips' with great-power rival, structurally eroding deterrence credibility for contested territories

The article documents a pattern where the dominant power simultaneously affirms unchanged policy at the institutional level (State Dept, Rubio) while the executive introduces personal ambiguity ('no commitment either way,' 'we will see what happens'). This dual-track signaling structurally weakens deterrence because the adversary can rationally discount the institutional commitment while banking on executive hesitation. The same dynamic has appeared historically when great powers have used smaller allies' security as trade currency, most notably in Nixon-era China opening and various Cold War détente episodes.

The article frames the arms sale suspension not as a policy reversal but as a sequenced concession in a negotiation pattern — tariff pressure, then summit concessions, then pre-visit gestures. This generalizes to a broader dynamic where smaller partners' security guarantees become bargaining leverage in great-power rivalry management, a pattern historically seen with US-Soviet détente affecting allied states. The structural implication is that contested territories dependent on external security guarantees face elevated risk when their patron enters transactional diplomacy with the rival claimant.

The article documents a shift from treating arms sales as a standing deterrence instrument to treating them as bilateral bargaining currency with the very power the arms are meant to deter. This undermines the credibility of US security assurances not just for Taiwan but for any partner whose defense relationship with the US could be traded in great-power negotiations. The additional detail that Trump discussed the sales 'in great detail' with Xi — despite a 1982 pledge not to consult Beijing — reinforces that the structural norm of insulating partner security from rival-power veto is eroding.