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Japan Maritime Self-Defense Force

Navy branch of the Japan Self-Defense Forces

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 17, 2026
Entity authoritySource title only
Source-derived summary

The Japan Maritime Self-Defense Force , abbreviated JMSDF , also simply known as the Japanese Navy, is the navy branch of the Japan Self-Defense Forces, tasked with the naval defense of Japan. The JMSDF was formed on 1 July 1954, 9 years after the dissolution of the Imperial Japanese Navy (IJN) in 1945, following their defeat in World War II. The JMSDF has a fleet of 160 ships, 346 aircraft and 50,800 personnel.

Editorial summary

This brief starts where responsible research should: with the source description of “Japan Maritime Self-Defense Force” as navy branch of the Japan Self-Defense Forces. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—1954, 1945—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Japan, Maritime and Self-Defense can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the general reference register because the source frames it as navy branch of the Japan Self-Defense Forces. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jul 17, 2026. The first chronological checks are 1954 and 1945.

Critical limits

The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Japan Maritime Self-Defense Force”, its source revision and the description used here.
  2. Expand the search: follow Japan Maritime Self-Defense Force primary sources, Japan Maritime Self-Defense Force archive and Japan research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Japan Maritime Self-Defense Force”?
  2. Which cited source is closest to the event, object or claim?
  3. What terminology or title could unlock a more precise catalogue search?
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Source & attribution

This entry incorporates text from “Japan Maritime Self-Defense Force” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.