Since the begining of this year, Japanese Prime Minister Shinzo Abe has been vocally championing amendments to the constitution, a document which has never been revised since it took effect 69 years ago.

His Liberal Democratic Party and its allies are working to secure a two-thirds majority in both chambers of the parliament to initiate a possible amendment for approval by a national referendum. But when it comes to specifics on what to change and how, the LDP and its allies have not yet reached any solid consensus.