Original sentence: After the entry of the USA into World War I in 1917, Hoople served on the front lines in France as a YMCA worker, where he led many soldiers to Christ
Edited sentence: After the entry of the USA into World War I in 1917, Hoople served on the front lines in France as a YMCA entertainer, where he not only raised the spirits of the troops with his melodious singing, but also led many soldiers to Christ