TEL AVIV (Reuters) - Israel"s Elbit Systems ESLT.TAESLT.O said on Thursday its American subsidiary won a contract from the U.S. Army for enhanced night vision goggle-binocular systems. The potential contract value for Elbit Systems of America could reach a maximum of $442 million, it said. The U.S. Army did not define a time-frame for carrying out the contract. An initial order in the amount of $22.5 million has been placed, to be fulfilled by December 2021. The systems provide U.S. warfighters with situational awareness during limited visibi lity conditions.