For more on Japan's upper house election, we are joined now in the studio by Yang Xiyu, a senior fellow from the China Institute of International Studies.

Q1: Japan's prime minister Shinzo Abe has indicated that he plans to discuss constitutional amendment after the election. So if his Liberal Democratic Party takes a two-thirds majority in the upper house and the constitution is amended, what influence will this have on Japan's future?

Q2: Do you think any constitutional amendment will have a negative influence on the regional situation?