AP source: Possible attack on US forces led to deployments

In this April 1 file photo, the USS Abraham Lincoln deploys from Naval Station Norfolk, in the vicinity of Norfolk, Va. (Kaitlin McKeown/The Virginian-Pilot via AP, File)

WASHINGTON — A White House decision to dispatch an aircraft carrier and other military resources to send a message to Iran followed “clear indications” that Iranian and Iranian proxy forces were preparing to possibly attack U.S. forces in the region, a defense official told the Associated Press.