This bill, known as the "Specialist Fourth Class Keith Smith Glioblastoma Parity Act of 2025" , proposes to amend title 38, United States Code, to establish a presumption of service connection for glioblastoma multiforme . This critical provision would apply to veterans who served in specific locations during the Vietnam era, thereby easing their access to disability benefits for this severe brain cancer. The legislation highlights congressional findings regarding the extensive spraying of Agent Orange and other herbicides in South Vietnam, Laos, and Cambodia between 1961 and 1971. These operations exposed tens of thousands of American service members, leading to ongoing negative health impacts for veterans and their families.