The proposal is “an attempt for public relations on the part of China,” said Li Mingjiang, a professor and international security expert at Singapore’s Nanyang Technological University.... In addition to calling for sovereignty to be respected and sanctions against Russia to end, the 12-point paper urges measures to prevent attacks on civilians and civilian facilities, keep nuclear facilities safe, establish humanitarian corridors for civilians and ensure the export of grain after disruptions inflated global food prices. It also called for an end to “Cold War mentality” — China’s standard term for what it regards as U.S. hegemony, and maintenance of...