In Sunday’s Lower House election, the ruling Liberal Democratic Party and its coalition partner Komeito won a two-thirds majority, which would allow them to push for a revision of the pacifist Constitution.

Yukio Edano, the deputy president of the moribund main opposition Democratic Party, has started preparing to form a new party for its liberal members, who are likely to be excluded from the Party of Hope led by Tokyo Governor Yuriko Koike.

Japan’s Prime Minister announced on Monday to dissolve the lower house at the beginning of the extraordinary session this week, while Tokyo’s female governor officially formed a national party to give voters an alternative to the ruling coalition in the upcoming general election.