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An influential Japanese political lobby says it will do its utmost to capitalize on Prime Minister Shinzo Abe's election victory to push for a constitutional revision for a more active military role.

Tadae Takubo, chairman of Nippon Kaigi, said Wednesday that the war-renouncing constitution that makes Japan's defense "defective" needs to be corrected.

Abe's election gains in the upper house over the weekend mean his party can now cobble together the crucial two-thirds majority in both houses it needs to propose a revision and put it to a referendum.