A key member of the Liberal Democratic Party said Tuesday he wants the party to achieve its long-held goal of revising the Constitution within the next two years, arguing the 68-year-old charter should be updated to adapt to a changing domestic and international environment.

Speaking at the Foreign Correspondents' Club of Japan in Tokyo, Hajime Funada, who heads the LDP's body to promote revising the Constitution, said he would like to see it amended in stages beginning with less contentious topics, such environmental rights, that are more likely to be supported by other political parties and the public.

War-renouncing Article 9 would be revised after completing the first wave of revisions, he said.