caption: The image shows a poster with the words "Halt the Hun - Buy U.S. Government Bonds Third Liberty Loan" written in bold, black lettering against a white background. The poster also features a black and white illustration of a man in a military uniform, with a rifle in one hand and a flag in the other, standing in front of a crowd of people. The man is looking determined and resolute, as if he is ready to take on any challenge that comes his way.