Japan’s ruling Liberal Democratic Party (LDP) and the major opposition Japan Innovation Party (JIP) signed a coalition agreement on Monday, with LDP head Sanae Takaichi almost certain to become Japan’s first woman prime minister the following day, Kyodo News Agency reported.

In a historic change in the nation’s political landscape, LDP will lead a minority government by partnering with JIP, also called Nippon Ishin, instead of the Komeito party, which ended its 26-year partnership with LDP earlier this month.