Chongqing, the provisional capital when China fought invading Japanese forces from 1937 to 1945, needs to preserve its wartime relics, political advisers said.

The Chongqing branches of two non-Communist parties - the China Association for Promoting Democracy and the Jiu San Society - have proposed that the municipality step up efforts to protect its legacy from the War of Resistance against Japanese Aggression.

"The cultural legacy from the war against Japanese aggression is one of the municipality's most valuable historic assets. However, it is also among the least well-protected aspects of the historic cultural heritage in the municipality," said Zhang Kemin, deputy chairwoman of the Chongqing branch of CAPD, during an annual session of the Chongqing committee of the Chinese People's Political Consultative Conference.