Japan's government is agin considering revisions to their constitution to allow warfare. Revision of Japanâs Constitution back on the agenda? | East Asia Forum Yomiuri has released the results of its annual poll on constitution revision and has found that once again a majority a slight one, 51.6 per cent favours revising Japans constitution. This marks a nine-point increase over last years poll. Opposition to revision fell from 43.1 per cent to 36.5 per cent. What do you think?