The head of the country's largest nationalist lobby group told reporters Wednesday that he believes Japan's pacifist Constitution will be revised in 10 years and that the country will turn into "a normal nation" thanks to the results of Sunday's Upper House election.

"For the first time in the postwar period, (pro-revision parties) have occupied more than two-thirds of both the Lower and Upper houses. This is a prefect chance, and the very first opportunity we've had," said Tadae Takubo, chairman of Nippon Kaigi (Japan Conference), during a news conference at the Foreign Correspondents' Club of Japan in Tokyo.

"If I was in the position of Prime Minister (Shinzo) Abe, I would do everything I could with all my strength" to revise the Constitution, he said.