Military deployments to the border have occurred under multiple administrations with varying troop levels. While this expands military role in immigration (separation concern at 3.0), the deployment is: (1) operationally reversible, (2) within existing Posse Comitatus framework for support roles, (3) lacks novel constitutional mechanism. A-score 15.8 reflects moderate separation concerns but falls below List A threshold of 25. B-score 22.3 driven by high outrage potential and political timing, but also below List B threshold. The 1,100 number is specific enough to generate headlines but represents incremental change to existing border military presence. Mechanism is resource_reallocation rather than structural constitutional change. Classification: Noise - politically charged but constitutionally routine administrative action.