Former SECAF Frank Kendall warns that conflicts against less advanced adversaries like Iran reinforce outdated tactics and supply chains. This diverts focus and resources from developing the adaptive capabilities needed to counter a peer competitor like China, which presents a fundamentally different challenge.

The conflict highlights a critical economic vulnerability in US defense strategy. The US is forced to use multi-million dollar missiles to counter Iranian drones that cost only $20,000. This massive cost imbalance demonstrates the power of asymmetric warfare and a significant strategic inefficiency for the US military.

Deploying advanced weapons in lower-threat environments serves as a test run but also provides a strategic gift to major adversaries. China's PLA gains invaluable intelligence on the performance, signatures, and capabilities of new U.S. systems by observing their use against Iran, allowing them to develop countermeasures without any cost or risk.

A regional conflict like the one in Iran has immediate global consequences for military readiness. The massive expenditure of interceptor missiles will create a supply crunch for US forces in other strategic areas like the Pacific and for allies like Ukraine, as production cannot keep up with wartime demand.

The US is moving from a global deterrence posture to concentrating massive force for specific operations, as seen with Iran. This strategy denudes other theaters of critical assets, creating windows of opportunity for adversaries like China while allies are left exposed.

A poorly executed war in Iran is creating the conditions for a domestic political backlash against defense spending. This jeopardizes the multi-year effort to build up munition stockpiles and advanced systems specifically for a potential Taiwan contingency, thereby weakening America's long-term posture against China.

The massive expenditure of U.S. missile defense interceptors in the Iran conflict is significantly cutting into the total inventory. This depletion, which cannot be quickly replaced, creates a window of vulnerability that could tempt China to act on its regional ambitions while the U.S. is distracted and under-supplied.

The conflict reveals a critical vulnerability: nations burn through advanced interceptor missiles at a rate that vastly outpaces annual production. Firing two interceptors per incoming missile means that even well-stocked Gulf states could exhaust their pre-war supplies in days, exposing a major bottleneck in the defense supply chain.

Simulations of a conflict with China consistently show the US depleting its high-end munitions in about seven days. The industrial base then requires two to three years to replenish these stockpiles, revealing a massive gap between military strategy and production capacity that undermines deterrence.