HAMPTON, VA—Huntington Ingalls Industries plans to build undersea drones at a facility here, anticipating greater demand for the unmanned submarines by the Navy.

DAYTONA BEACH, FL—Defense contractor AO Precision Manufacturing will build a new, $2.28 million assembly plant adjacent to its existing factory here.

WASHINGTON—A 14-month Congressional investigation uncovered 1,800 cases of counterfeit electronic components for American military equipment, including missiles, targeting systems and instrument panels. All totaled, the cases involved more than 1 million bogus parts.