sentences:  The Communists decided to deploy their 13th Column to threaten the Nationalists in Qingdao so that they could not reinforce Nationalists elsewhere, and to concentrate units from their 7th Column, 9th Column, Bohai Column, and units from the Communist central Shandong and Bohai military districts to launch an offensive in the regions of Zhou's Village and Zhang's Hotel to dislodge the Nationalists.Defenders