The Obama administration warned Thursday that a Senate bill proposing funding cuts next year for infrastructure projects on Guam could harm U.S.-Japan relations.

The proposed reduction of about $156 million would affect construction projects related to a 2006 agreement between Japan and the U.S. to transfer marines from the Futenma air base in Okinawa to Guam by 2014.

The bill would also require the Department of Defense to study moving Marine Corps Air Station Futenma to nearby Kadena Air Base, which is an air force base, rather than relocating to a replacement facility at Camp Schwab in northern Okinawa Island.