| year,milestone_type,interceptors_delivered_cumulative,interceptors_expended_cumulative,inventory_approx,source_document,notes | |
| 2005,first_operational_battery,,0,~24,MDA THAAD Fact Sheet (Doc 3),First THAAD battery declared operational at Fort Bliss | |
| 2008,ioc_declaration,,0,~48,GAO-22-104344 (Doc 8),Initial Operational Capability declared; 2 batteries operational | |
| 2010,lrip_deliveries,,0,~72,GAO-22-104344 (Doc 8),Low-Rate Initial Production deliveries accelerate battery fielding | |
| 2013,guam_deployment,,0,~100,CRS IF10541 (Doc 4),Third battery deployed to Guam; inventory supports 4-battery posture | |
| 2015,full_rate_production,,0,~144,GAO-22-104344 (Doc 8),Full-Rate Production approved; production rate increases | |
| 2017,korea_deployment,,0,~200,USCC Staff Report (Doc 10),Korean deployment draws from inventory; 6+ batteries now operational | |
| 2019,centcom_deployment,,0,~230,GAO-25-108187 (Doc 9),Middle East deployment; inventory approaching program of record | |
| 2022,gao_review_baseline,,0,~260,GAO-22-104344 (Doc 8),GAO-22-104344 review point; 7+ batteries deployed globally | |
| 2024,israel_deployment,,0,~270,DOD Press Release (Doc 11),Israel emergency deployment Oct 2024; 8th battery deployed overseas | |
| 2025,pre_epic_fury_baseline,,0,~280,GAO-25-108187 (Doc 9),Pre-conflict inventory baseline per GAO-25-108187 | |
| 2026-02,epic_fury_start,,0,~280,CRS IF12645 v14 (Doc 5),Pre-conflict; engagement begins February 2026 | |
| 2026-06,epic_fury_end,,92,<50,CRS IF12645 v15 (Doc 6),Post-ceasefire; ~92 interceptors expended; global stock <50 operational | |
| 2026-06,emergency_replenishment_authorized,,92,<50,CRS IF12645 v15 (Doc 6),$3.1B supplemental authorized to restart production surge | |
| 2026-06,production_surge_required,,92,<50,Lead IG OIR Q2 FY2026 (Doc 13),IG report documents replenishment challenge; production rate constraints | |