When Japan was defeated in the Pacific War and withdrew from Manchuria, the Soviet Union replaced the Japanese presence and stripped the region of the industrial infrastructure constructed by the Japanese, and claimed the concessions of Lushun and Dalian.
太平洋戦争で日本が敗れて撤退すると、代わって進駐したソ連が満洲侵略に乗じて日本の残したインフラを持ち去り、旅順・大連の租借権を主張した。