Siege of Peking, Boxer Rebellion: "I'll Try, Sir"! Department of the Army Poster
Print(reproduction) of the original "I'll Try Sir," U.S. Army in Action historical painting, depicting the United States Army during the 14th August 1900 Allied Relief Expedition assault on the outer walls of Peking in China during the Boxer Rebellion.
(Copied from Wikimedia Commons, a freely licensed media file repository.)