Prime Minister Shinzo Abe said Wednesday it is natural for Japan to revise its Constitution, noting nearly 70 years have passed since it was drafted under the Allied Occupation.

"It's hard to say the Japanese created it on their own," Abe said on a television program. "Revising the Constitution is natural. Creating the Constitution on our own would lead to carving out a new era."

Items to be revised will be "discussed from now," the prime minister said, adding participation in the discussion by the Japan Innovation Party or other opposition parties would be appreciated.