Shinsengumi
Japanese:新選組 or 新撰組
Shinsengumi were special police force in Kyoto which organized by Bakufu in Bakumatsu .
Roshigumi
1862 Bakufu recruited Ronin to guard Shogun Iemochi on the occasion of visit to Kyoto. It was planned by Kiyokawa Hachiro of Shonai han. Around 200 Ronin formed Roshigumi, they headed to Kyoto in Feburuary 1863. The supervisors were Matsudaira Chikaranosuke, Udono Kyuo, Kubota Shigekatsu, Yamaoka Tesshu, Nakajo Kinnosuke, Sasaki Tadasaburo. Right after they arrived at Kyoto, Kiyokawa's conspiracy was revealed. The Roshigumi decided to return Edo except Kondo Isami's Shieikan and Serizawa Kamo's Mito group. Some other members also remained with them in Mibu village, Kyoto. In March, They named Mibu Roshigumi. The Mibu Roshigumi was hired by Aizu han the Military Commissioner of Kyoto In August, they were dispatched for the Political change on August 18. Lord Matsudaura Katamori evaluated their job and gave them new name Shinsengumi. (Some sources say the name was given by Buku Denso)
Shinsengumi
September 1863, Shieikan group purged Mito group to control over Shinsengumi. In 1864 Shinsengumi raided Ikedaya where Sonjo Roshi were planning to burn Kyoto. After following Kinmon rebellion , Shinsengumi recruited more than 200 new members with the prize money given by the Imperial court, Bakufu and Aizu han.
The new members included Ito Kashitaro group who Kondo recruited in Edo. The Shinsengumi headquarter moved to Nishi Hongan-ji from Mibu. 1867 shortly after Shinsengumi were officialy hired as Bakushin , Ito Kashitaro group were separated and formed Goryô Eji. They were assassinated.(Aburano Kôji Jiken)
Boshin War
January 1868 , Boshin war was started with the Battle of Toba-Fushimi. Shinsengumi and other Bakufu troops flighted to Edo with battleship {{Fujisan Maru]] .
