The was the

Imperial Japanese Navy The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, when it was dissolved following Japan's surrender ...

military police Military police (MP) are law enforcement agencies connected with, or part of, the military of a state. In wartime operations, the military police may support the main fighting force with force protection, convoy security, screening, rear recon ...

, equivalent to the

Imperial Japanese Army The was the official ground-based armed force of the Empire of Japan from 1868 to 1945. It was controlled by the Imperial Japanese Army General Staff Office and the Ministry of the Army, both of which were nominally subordinate to the Emperor o ...

's ''

Kempeitai The , also known as Kempeitai, was the military police arm of the Imperial Japanese Army from 1881 to 1945 that also served as a secret police force. In addition, in Japanese-occupied territories, the Kenpeitai arrested or killed those suspecte ...

''. It was also the smallest military police service. The original ''Tokkeitai'' was known as the General Affairs Section and concerned itself with police and

personnel Employment is a relationship between two parties regulating the provision of paid labour services. Usually based on a contract, one party, the employer, which might be a corporation, a not-for-profit organization, a co-operative, or any othe ...

work within the Navy: personnel, discipline and records. It took a more active role, partly to keep the ''Kempeitai'' and the Army from meddling in Navy affairs. Smaller and more low-key than its rival, it was no less brutal. It was especially active in the areas of the South Pacific and the Naval Control Area and was as pervasive as the ''Kempeitai''. It had the same

commissar Commissar (or sometimes ''Kommissar'') is an English transliteration of the Russian (''komissar''), which means 'commissary'. In English, the transliteration ''commissar'' often refers specifically to the political commissars of Soviet and Eas ...

roles in relation to exterior enemies or suspicious persons, and it watched inside units for possible defectors or traitors under the security doctrine of '' Kikosaku''. Attached to navy units, they served as

Colonial police Colonial or The Colonial may refer to: * Colonial, of, relating to, or characteristic of a colony or colony (biology) Architecture * American colonial architecture * French Colonial * Spanish Colonial architecture Automobiles * Colonial (1920 au ...

in some occupied

Pacific The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continen ...

areas. Later accusations of war crimes were made against them in that role for such acts as coercion of women from Indonesia, Indochina and China into

sexual slavery Sexual slavery and sexual exploitation is an attachment of any ownership rights, right over one or more people with the intent of Coercion, coercing or otherwise forcing them to engage in Human sexual activity, sexual activities. This include ...

. In addition to its police responsibilities, it was the operative branch of the Secret Service Branch of the Imperial Japanese Navy (, which was responsible for recovering and analyzing information and for the execution of undercover operations. Its members also provided local security near

naval base A naval base, navy base, or military port is a military base, where warships and naval ships are docked when they have no mission at sea or need to restock. Ships may also undergo repairs. Some naval bases are temporary homes to aircraft that us ...

s. In the final weeks of the

Pacific War The Pacific War, sometimes called the Asia–Pacific War, was the theater of World War II that was fought in Asia, the Pacific Ocean, the Indian Ocean, and Oceania. It was geographically the largest theater of the war, including the vast ...

, it was among the security units prepared for combat against the proposed

Allied An alliance is a relationship among people, groups, or states that have joined together for mutual benefit or to achieve some common purpose, whether or not explicit agreement has been worked out among them. Members of an alliance are called ...

invasion of Japan Operation Downfall was the proposed Allied plan for the invasion of the Japanese home islands near the end of World War II. The planned operation was canceled when Japan surrendered following the atomic bombings of Hiroshima and Nagasaki, ...

Notes

{{Imperial Japanese Navy Defunct law enforcement agencies of Japan Defunct Japanese intelligence agencies Imperial Japanese Navy Political repression in Japan

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

National security institutions