Top diplomats from the Group of Seven industrial powers voiced shared concerns on Tuesday about China's expansionist tendencies in Asia, even as they sought to present a united front on Russia's destabilizing war in Europe. "We remind China of the need to uphold the purposes and principles of the U.N. Charter and abstain from threats, coercion, intimidation, or the use of force," the G7 foreign ministers said in their post-summit communique, which drew strong condemnation from Beijing. The lengthy joint statement followed three days of talks in Karuizawa, a resort town in Japan's central Nagano prefecture, between representatives from Canada,...