Prepared by R.R. Donnelley Financial -- Form 425

                                                         FILING PURSUANT TO RULE 425 OF THE
                                                         SECURITIES ACT OF 1933, AS AMENDED

                                                         FILER: NORTHROP GRUMMAN CORPORATION

                                                         SUBJECT COMPANY: TRW INC. (NO. 1-2384)

                                                         FILING: REGISTRATION STATEMENT ON FORM S-4
                                                                        (REGISTRATION NO. 333-83672)