The Justice Department’s Environment and Natural Resources Division (ENRD) has delivered a major win for mineral development and national security. On March 13, the Division’s Appellate Section secured a decision from the Ninth Circuit affirming the district court’s denial of a preliminary injunction seeking to block the Resolution Copper project in Arizona. The decision allows the federal government to proceed with a congressionally mandated land exchange crucial to advancing development of one of the largest known copper deposits in the world.