Russia have occupied Kaliningrad over 60 Years in real world until now, still foreign Region China have FULLY occupied Tibet over 60 Years in real world until now,(the vassal relationship have been created since Qing Dynasty) , still foreign Region America occupied Philippine over 30 Years in real world, still foreign Region. America only put the army to Okinawa, but it is historical Region for America (Although it need to burn burn burn Kagoshima and not meaningful to do so). America also put the army to South Korea but it is not historical region for America. Mongol occupied China about 90 Years, not historical region; Japan only occupied Manchuria without international admit about 14 Years and then be kicked out, and it is historical region. So how Leoreth decide the historical region?