Question: Which battle was fought for a shorter period of time, the Battle of the Ch'ongch'on River, or the Meuse-Argonne Offensive?
Sentence (from "Meuse-Argonne Offensive"): It was the largest and bloodiest operation of World War I for the American Expeditionary Force (AEF), which was commanded by General John J. Pershing, and one of the deadliest battles in American history.
Relevant evidence: No