The Japanese imperialists then occupied tsinan , the provincial capital of shantung , and cut the Tientsin-Pukow railway line to check the northward spread of British and American influence .
日本帝国主义为阻止英美势力向北方发展,出兵山东,侵占济南、青岛和胶济路沿线,截断津浦铁路。