Announcing on  Sunday that he would run in his ruling party’s leadership election, Shinzo Abe is on track to become Japan’s longest-serving prime minister and pursue his dream of reforming the constitution.

Abe is not expected to have any difficulty securing re-election as head of the conservative Liberal Democratic Party (LDP), having the support of most legislators and just one challenger, former defense minister Shigeru Ishiba, AFP reported.

“I have decided to lead Japan as the LDP leader and the prime minister for three more years, and with this determination, I will run for the leadership election next month,” Abe told a press conference.

Abe said he would focus on addressing demographic issues concerning the country’s rapidly ageing society as well as the “tumultuous changing international situation.”