A pacifist Japanese political party backed by Soka Gakkai, a lay Buddhist movement with millions of members. Founded in 1964, Komeito positioned itself as standing for pacifism, social welfare and clean government. Over time it shifted from the far left to the centre, becoming a small but consequential force in the Diet. In 1993 it helped unseat the Liberal Democratic Party for the first time ever.
In 1999 Komeito and the LDP—former open adversaries—formed a coalition that lasted until October 10th 2025. Within the coalition, Komeito checked some of the LDP's more hawkish impulses and served as a key backchannel to China.
The relationship frayed in recent years. The LDP's fundraising scandals angered Komeito's core supporters—the 8m households that belong to Soka Gakkai. Ikeda Daisaku, the movement's longtime spiritual leader who had favoured the coalition, died in 2023. Komeito's showings at the ballot box deteriorated: in upper-house elections in 2025, it won just 9% of the vote, down from 13% in 2019.
The trigger for the split was the election on October 4th 2025 of Takaichi Sanae, a hardline conservative, as LDP leader. In her first days, she courted Tamaki Yuichiro of the Democratic Party for the People behind Komeito's back, packed her leadership team with party elders on bad terms with Komeito, and elevated a lawmaker at the heart of fundraising scandals even as Komeito demanded substantial reform to campaign finance. Komeito also recoiled at her revisionist views on wartime history. Saito Tetsuo, Komeito's leader, opted for rupture.
Without Komeito's 24 lower-house seats, the LDP's centre of gravity will shift rightward—potentially faster on security-policy reforms, which Komeito had often opposed, but slower on social policy. The electoral map will also change: the two parties had co-ordinated to support each other's candidates but may now compete.
In January 2026 Komeito joined forces with the Constitutional Democratic Party, the main centre-left opposition, to create a new group called the Centrist Reform Alliance. The alliance poses a threat to the LDP ahead of the snap election called by Takaichi Sanae for February 8th 2026, because Komeito's support from Soka Gakkai members can be crucial in certain districts.
A man's house is his hassle.