In War 1940- is a collaboration between artists Karen Baldner and Drew Cameron, who directs Combat Paper, an organization that was founded in 2007 as a way to connect returning veterans with their communities through the paper-making process.

In War 1940- is a 3-folio, six page piano hinge binding. Each page represents a conflict the US has been engaged in since and including World War II and is handmade from the pulp of shredded uniforms pertaining to its respective conflict. The conflict that contributed to the paper that formed each page is printed on its back. The pages are held together with dowels and attached to a hardcover. Pages are consecutively smaller with the largest page representing World War II and the smallest page representing Afghanistan. The stepped piano hinge structure allows pages to be visible simultaneously and in relation to each other. Cover and inside lining are made from a paper pulp mixture of uniforms from all US conflicts represented in the book.

The project is an effort to comprise the work of Combat Paper into a tangible, comprehensive object. Although Karen and Drew were the main organizing agents in making this book, part of its construction was a collaboration with combat veterans who donated uniforms and cut them into pieces for the pulping process.