What are the effects of WWI on art and architecture?

This paper must be 5 pages long, 12pt. Times New Roman font, double spaced, left justified, with citations done in Chicago Manual of Style format.
.Also, you should have consulted at least three sources, but no more than five, and only one of which may be an online resource. (JSTOR is not considered an online resource. It is a database of published articles.)
Furthermore, since this is an art history class, you should also ground your discussion on an object. You may discuss relationships between paintings, sculpture, architecture, or photography. When doing your research, think about how it relates to artistic production.