Japan to Adopt Military-Style Ranks for SDF... Debate Over "Regular Army" Status Expected

The Japanese government is pushing for a legal revision to change the titles of senior Self-Defense Forces (SDF) ranks to a more military-style nomenclature. While the stated rationale is "international standardization," the move is expected to fuel debate over the changing character of the SDF.

On the 25th, Yonhap News Agency, citing local media such as the Yomiuri Shimbun, reported that the Japanese government plans to submit a draft revision of the Self-Defense Forces Act to the National Diet within this year, aiming to reorganize the titles of senior officers. The reform will apply to officers ranked company grade and above, excluding the warrant officer grade.

Self-Defense Forces personnel at the Japanese military base on Ishigaki Island, Okinawa. Photo by Yonhap News

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The revision would change the position of "Chief of Staff" (the equivalent of the head of the Ground, Maritime, and Air SDFs) to "General," and other generals would be retitled as "Lieutenant General." The rank equivalent to "Colonel" (1st-Class Officer) would become "Taiza" (Colonel), while the 2nd-Class and 3rd-Class Officers would be adjusted to "Chuza" (Lieutenant Colonel) and "Shoza" (Major), respectively. The "1st-Class Lieutenant" would be changed to "Captain." In contrast, the titles for non-commissioned officers (NCOs) and enlisted ranks will remain unchanged.

This is the first large-scale title change since the SDF was established in 1954. Japan, adhering to its postwar constitutional interpretation, has not classified the SDF as a military force. As such, it has maintained a unique rank structure to emphasize that the SDF is not a military. However, titles such as "1st-Class Officer" and "2nd-Class Officer," which are denoted by numbers, have long been criticized for making it difficult to understand rank hierarchy and causing confusion when cooperating with foreign militaries. The Japanese government argues that aligning titles with international standards is necessary to address these issues.

However, the plan does not include converting all ranks to military-style titles. This reflects feedback from active SDF personnel, who warned that reviving terms from the former Imperial Japanese Army, such as "Gunnery Sergeant" or "Private Second Class," could provoke negative historical perceptions. Furthermore, if the revision passes, not only the Self-Defense Forces Act but also related laws such as the Ministry of Defense Employee Salary Act would need to be amended, meaning actual implementation could take several years.

Efforts to align the SDF’s titles and systems with international military standards have been ongoing. The ruling Liberal Democratic Party and Japan Innovation Party have already specified "the pursuit of international standardization within fiscal year 2026" in their coalition agreement. Accordingly, this measure is being interpreted by some as a step toward transforming the SDF into a regular military force.

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