# Sentinel ICBM, 81% over budget, still being restructured
> America's $141B Minuteman replacement targets a first test launch in 2027 — years late, with new-build silos driving the overrun

**Meta:** type: event · date: 2026-06-10 · heads: Dinheiro de quem, O jogo longo · 8 takes · 3 lenses · 3 regions

## Summary

The [LGM-35A Sentinel](/pt/entity/sentinel-icbm) — the [US Air Force's](/pt/entity/air-force) replacement for the
Minuteman III ICBM force — remains under restructuring nearly two years after a critical
[Nunn-McCurdy](/pt/head/whose-money) cost breach. The Pentagon recertified the program but total cost
rose 81% to ~$140.9B; the overrun is concentrated not in the missile but in the decision to
build new silos and command infrastructure rather than reuse 50-year-old Minuteman launch
facilities judged too decrepit. [Northrop Grumman](/pt/entity/northrop-grumman) is checking off
milestones as the Air Force aims to finish restructuring by end-2026, fly a first test launch
by 2027 and reach initial capability in the [early 2030s](/pt/head/the-long-game). The FY26 budget
sought $3.7B; Congress added $2.5B in reconciliation for risk reduction. The land leg's delay
lands as the [arms-control regime](/pt/n/new-start-expiry-aftermath) lapses.

## By the numbers

- +81% — cost growth, to ~$140.9B total.
- $3.7B + $2.5B — FY26 request plus reconciliation add for risk reduction.
- 2027 — targeted first test launch.
- early 2030s — projected initial operational capability.
- ~2 years — since the cost breach, still being restructured.

## Why it matters

Sentinel modernizes one full leg of the US nuclear triad, and its slippage means the aging
Minuteman force must serve years longer than planned — just as China and Russia expand. Cost
growth this large also squeezes the rest of the [defence budget](/pt/head/whose-money), including the
interceptor rebuild.

## What to watch

- Whether the restructure actually closes by end-2026.
- The 2027 first test launch as a credibility marker.
- How long Minuteman III must be life-extended to cover the gap.

## Regional takes (batched by bias / lens)

### unlabelled
- **US Department of War — Sentinel Nunn-McCurdy review release** (United States, en) — The Pentagon's own announcement of the Sentinel Nunn-McCurdy review results: certifies the program continues despite the critical cost breach, restructures it, and sets the path to recertification — the primary record of the decision.
  Source: https://www.war.gov/News/Releases/Release/Article/3829985/department-of-defense-announces-results-of-sentinel-nunn-mccurdy-review/
- **US GAO — ICBM modernization snapshot** (United States, en) — GAO's national-security snapshot on ICBM modernization: lays out Sentinel's critical risks and schedule, the launch-infrastructure cost driver, and oversight findings — the independent watchdog record.
  Source: https://www.gao.gov/products/gao-26-108755
- **AeroTime** (Lithuania, en) — 
  Source: https://www.aerotime.aero/articles/us-dod-sentinel-icbm-program-cost-overruns
- **Air & Space Forces (work-halt order)** (United States, en) — 
  Source: https://www.airandspaceforces.com/air-force-orders-halt-some-work-sentinel-icbm/
- **Congressional Research Service (Sentinel primer)** (United States, en) — 
  Source: https://www.congress.gov/crs-product/IF11681
- **Wikipedia (LGM-35 Sentinel)** (Global, en) — 
  Source: https://en.wikipedia.org/wiki/LGM-35_Sentinel

### air-power trade
- **Air & Space Forces Magazine** (United States, en) — Reports Northrop checking off restructure milestones, the Air Force aiming to finish restructuring by end-2026, first test launch by 2027 and IOC in the early 2030s — with the bulk of the overrun in newly-built silo and command infrastructure.
  > "The Air Force aims to finish restructuring Sentinel by end-2026, achieve a first test launch by 2027 and reach initial operational capability in the early 2030s."
  Source: https://www.airandspaceforces.com/northrop-sentinel-milestones-program-restructure/

### defence analysis
- **The War Zone (TWZ)** (United States, en) — Stresses that nearly two years after the cost breach the program is still being restructured and remains years behind, with the decision to build new silos rather than reuse 50-year-old Minuteman infrastructure driving the blowout.
  > "Nearly two years after the breach, Sentinel is still being restructured — the choice to build new silos rather than reuse Minuteman's drove the overrun."
  Source: https://www.twz.com/nuclear/troubled-sentinel-icbm-program-still-being-restructured-nearly-two-years-after-cost-breach

## Across the graph
- Related: [[b21-raider-combat-testing-2026]], [[new-start-expiry-aftermath]]
- Entities: Sentinel Icbm, United States, Northrop Grumman, Air Force, Nuclear Weapons

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Canonical: https://rbtfl.xyz/pt/n/sentinel-icbm-restructure-2026