The National Cancer Act was signed into law in 1971, declaring a “War on Cancer.” While cancer deaths have declined remarkably since then due to major advances in therapies, we are still far from eliminating cancer altogether. In her Share Your Research talk, Christina Cho discusses how we could make further progress in our fight against cancer by learning more about the tumor microenvironment and the role of the immune system on tumor growth. Her work focuses on the complicated functions associated with cancer-associated fibroblasts, which can both help and harm cancer cells.