The leader of a nation must have ambition above all else, and if he doesn't have it he should quit immediately, said Ichiro Ozawa, who started his new term as president of the Democratic Party of Japan on Tuesday.

Ozawa, who leads the nation's largest opposition party, was speaking of the DPJ's future ambitions in an interview Wednesday with The Japan Times.

Ozawa said that if the DPJ takes over as the government, he will strengthen the power of local governments.