The man in the middle is MP Tamaki Denni, who represents Okinawa third district.辺野古 means Henoko新基地 means new baseヒューマンチェーン means human chain
The image is retrieved from www.labornetjp.org/news/2015/0524shasin
On May 24, there was a human chain protest in front of the Parliamentary building in Tokyo against the construction of a new U.S. military base in Henoko. Approximately 15,000 people participated, including MP Denni Tamaki who represents the third district of Okinawa in the lower house of Parliament and Susumu Inamine, the mayor of Nago (the city in Okinawa where Henoko is located).
The protesters wore blue in order to symbolize the color of oceans off Okinawa. Around 3 pm, the protesters held hands to create the human chain.
retrieved from motomura.jcp-aichi.jp/nobi2/100125-221508.html
Mayor Inamine speaking to protesters
The image is retireved from www.labornetjp.org/news/2015/0524shasin
retrieved from www.labornetjp.org/news/2015/0524shasin
retreived from www.peace-forum.com/houkoku/20150524.