On August 30, 2015, the SEALDs was among protesters who surrounded the
National Diet Building in Tokyo. Estimates of the size of the crowd ranged from 30,000 to 120,000. Such a large student movement had not emerged in Japan since the anti-war protests of the 1960s, which forced Shinzo Abe's grandfather
Nobusuke Kishi to resign as Prime Minister. On December 20, 2015, SEALDs co-founded the Civil Alliance for Peace and Constitutionalism with the
Association of Scholars Opposed to the Security-related Laws, Save Constitutional Democracy Japan, Mothers Against War and All Out Action Committee (Sogakari). The security laws were enacted on March 29, 2016. SEALDs organised a protest in front of the Parliament building the day before. SEALDs' activities ranged from holding demonstrations, protest rallies and marches, organizing study groups and talk events, to creating booklets, pamphlets and videos, using social media. They also moved around the country to support various movements and candidates, such as the protests in Okinawa against the US military base and the Hokkaido by-elections in April 2016. SEALDs disbanded on August 15, 2016, one month after the ruling
Liberal Democratic Party won a supermajority in the
Upper House election. However, co-founder Aki Okuda (奥田 愛基) stated that the campaign was not over and urged all of Japan's politicians to continue to protect the Constitution. ==References==