amur oblast archipelago argun river balhae battle of lake khasan china chinese civil war chinese character chinese language chita colonialism europe goguryeo greater khingan imperial japanese navy japan jewish autonomous oblast kamchatka peninsula khabarovsk khabarovsk krai kwantung army manchu manchuria mao zedong mohe nikita khrushchev nomonhan outer mongolia pearl harbor primorsky krai qing dynasty red army republic of china russia russian empire sakhalin sea of japan sikhote-alin sixty-four villages east of the heilongjiang river state duma taiwan treaty of aigun treaty of nerchinsk tungus world war ii