"Changes were implemented in Fiscal Year (FY) 2026 from existing resources in the most cost effective and non-invasive ways (e.g., using stock until depleted before making changes to letterhead, updating signage by collective purchases)," the Pentagon's legislative proposal says, framing the department's request to Congress to rename the Defense Department the "Department of War."
Pentagon proposal: stated purpose and language
The Pentagon has formally asked Congress to change the name of the Defense Department to the Department of War in a draft legislative proposal tied to the fiscal 2027 defense policy bill. The proposal asserts the renaming would have "no significant impact" on the FY27 budget and calls the revision "a fundamental reminder of the importance and reverence of our core mission, to fight and win wars." It describes the change as a "strategic objective in which to measure and prioritize all activities."
Pentagon estimate vs. CBO analysis: competing cost figures
The department later quantified some near-term spending: it estimated it will spend about $51.5 million across its organization during FY26 to implement the name swap, with $44.6 million of that sum "used to make changes within defense agencies and DoD field activities." The proposal also notes that "actual costs incurred as the department transitioned using to the 'Department of War' nomenclature 'are still being collected.'"
The Congressional Budget Office offered a separate assessment in a January letter to Sen. Jeff Merkley, the top Democrat on the Senate Budget Committee. The CBO estimated that transitioning the name would cost at least $10 million but that costs "could be as large as $125 million if the name change was implemented broadly and rapidly throughout the department." The office also warned that "A statutory renaming could cost hundreds of millions of dollars depending on how Congress and DoD chose to implement the change."
Operational logistics: paper, signage, and stock on hand
The proposal describes a practical, phased approach to implementation: where possible, existing stock would be used "until depleted before making changes to letterhead," and signage would be handled through "collective purchases" to minimize disruption. Those specifics are offered as evidence that early changes in FY26 were executed "from existing resources in the most cost effective and non-invasive ways."
Yet the department acknowledges it is still tallying the full bill. The Pentagon's $51.5 million FY26 figure covers a portion of implementation activity, while the CBO's letter suggests that broader or faster implementation choices could drive substantially higher costs.
What this means for defense agencies, the CBO, and congressional Democrats
- Defense agencies and DoD field activities: The Pentagon identifies these organizations as the primary locus of spending, noting $44.6 million of the FY26 estimate will be used to update materials and infrastructure within those entities. Practical steps already cited include updating letterhead and signage and using existing stock to delay wholesale replacement.
- The Congressional Budget Office: The CBO has produced alternative cost ranges and cautioned that a statutory rename could expand into "hundreds of millions of dollars" depending on implementation speed and scope, placing it squarely in the budgetary debate for lawmakers reviewing the FY27 defense policy bill.
- Congressional Democrats: The proposal is described in reporting as likely to "rile Democrats" as lawmakers begin work on the FY27 policy bill. Sen. Jeff Merkley received the CBO letter outlining potential cost ranges, a concrete touchpoint for Democrats weighing political and fiscal responses.
Inside Defense was first to report on the legislative proposal, and the timing ensures the renaming request will be considered while Congress negotiates the fiscal 2027 defense policy bill. The competing cost estimates — a department tally of roughly $51.5 million spent in FY26 for early implementation versus CBO ranges that start at $10 million and extend into the low hundreds of millions depending on scope — frame the practical and political trade-offs lawmakers will weigh.
The proposal presents a clear declarative aim: a statutory renaming to serve as a "fundamental reminder" of mission and a metric for prioritization. It also leaves a budgetary question open: how broadly and rapidly any name change would be executed, and who will pay for the parts of implementation still "being collected" in the Pentagon's accounting. That choice — linguistic, symbolic and fiscal — is now lodged with Congress as it drafts the FY27 defense policy bill.
