 On December 8, 1941, the sisters' compound in Kaifeng was attacked by Japanese soldiers.The sisters from the United States were forced to relocate to a Baptist mission compound and then a Benedictine Sisters' compound in Kaifeng.On March 22, 1943, the Sisters of Providence and all other U.S. missionaries were interned at the Weihsien Compound, a concentration camp in Shandong.