I've seen that the port was leased to them by the Qing and that they allowed a railroad to be built there, but I've also read about the "Russian Invasion of Manchuria in 1900" where wikipedia states the Russians and Qing were combatants. There just seems to be a lot going on during this time and I am not sure who owns what or how the Russians got the Port. There's the Sino-Japanese war where Japan ends up with the Liaodong Peninsula and thereafter loses it but then the peninsula is "occupied" by the Russians? Was that occupation one that was allowed or was it an invasion?