SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                              --------------------

                                    FORM 6-K

                        Report of Foreign Private Issuer
                        Pursuant to Rule 13a-16 or 15d-16
                     of the Securities Exchange Act of 1934
                         For the Month of December 2005

                             -----------------------

                               ELBIT SYSTEMS LTD.
                 (Translation of Registrant's Name into English)
           Advanced Technology Center, P.O.B. 539, Haifa 31053, Israel
                    (Address of Principal Corporate Offices)

         Indicate by check mark whether the registrant files or will file annual
         reports under cover of Form 20-F or Form 40-F:

                 |X|        Form 20-F         |_|      Form 40-F

         Indicate by check mark if the registrant is submitting the Form 6-K in
         paper as permitted by Regulation S-T Rule 101(b)(1): |_|

         NOTE: Regulation S-T Rule 101(b)(1) only permits the submission in
         paper of a Form 6-K if submitted solely to provide an attached annual
         report to security holders.

         Indicate by check mark if the registrant is submitting the Form 6-K in
         paper as permitted by Regulation S-T Rule 101(b)(7): |_|

         NOTE: Regulation S-T Rule 101(b)(7) only permits the submission in
         paper of a Form 6-K submitted to furnish a report or other document
         that the registrant foreign private issuer must furnish and make public
         under the laws of the jurisdiction in which the registrant is
         incorporated, domiciled or legally organized (the registrant's "home
         country"), or under the rules of the home country exchange on which the
         registrant's securities are traded, as long as the report or other
         document is not a press release, is not required to be and has not been
         distributed to the registrant's security holders, and, if discussing a
         material event, has already been the subject of a Form 6-K submission
         or other Commission filing on EDGAR.

         Indicate by check mark whether the registrant by furnishing the
         information contained in this form is also thereby furnishing the
         information to the Commission pursuant to Rule 12g3-2(b) under the
         Securities Exchange Act of 1934:

                       |_|      Yes               |X|      No

         If "Yes" is marked, indicate below the file number assigned to the
         registrant in connection with Rule 12g3-2(b): 82-______________




         Attached hereto as Exhibit 1 and incorporated herein by reference is
the Registrant's press release dated December 4, 2005.

                                    SIGNATURE

         Pursuant to the requirements of the Securities Exchange Act of 1934,
the Registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

                                  ELBIT SYSTEMS LTD.

                                  (Registrant)

                                  By: /s/ Ilan Pacholder
                                      --------------------------------------
                                  Name:  Ilan Pacholder
                                  Title: Corporate Secretary

Dated:  December 5, 2005





                                  EXHIBIT INDEX

    EXHIBIT NO.     DESCRIPTION
    -----------     -----------

    1.              Press release dated December 4, 2005.





                                    EXHIBIT 1



[LOGO OF ELBIT SYSTEMS LTD.]

                     ELBIT SYSTEMS SIGNS (EURO)57.3 MILLION
                    HELICOPTER UPGRADE PROGRAM CONTRACT WITH
                       THE BULGARIAN MINISTRY OF DEFENSE


Haifa,  Israel,  December 4, 2005 - Elbit Systems Ltd. (NASDAQ:  ESLT) announced
today that on December 2, 2005,  it signed a (euro)57.3  million  (approximately
$70  million)  contract  for a helicopter  upgrade  program  with the  Bulgarian
Ministry of Defense. The entry into force of this contract is subject to several
standard matters that are anticipated to be completed shortly.  This program was
the subject of previous  announcements by Elbit Systems on December 21, 2004 and
March 10, 2005.

The program includes upgrading 12 MI-24 combat helicopters and 6 MI-17 transport
helicopters,  to comply  with NATO  standards.  The  program is  expected  to be
performed over a three-year  period.  It will be executed with the participation
of Bulgarian aerospace and defense industries.

Elbit  Systems has extensive  experience in the area of helicopter  upgrades and
has performed  numerous  major  helicopter  upgrades of both western and eastern
origin  platforms.  The Company's  advanced  avionics are currently  operational
onboard  thousands  of  helicopter  platforms  in the fleets of the  Israeli Air
Force,  the United  States Air Force and other  defense and civilian  helicopter
operators  worldwide.  This includes recent contracts to upgrade  helicopters of
various  Central  European  Air  Forces,   resulting  in  compliance  with  NATO
standards.

Joseph  Ackerman,  President and CEO of Elbit  Systems said:  "We are pleased to
have signed our first helicopter  upgrade  contract in Bulgaria.  I believe that
our proven expertise and experience in the area of helicopter upgrades,  coupled
with the cooperation of our customer and Bulgarian industries,  will result in a
successful  program for the mutual  benefit of the Bulgarian Air Force and Elbit
Systems and will reinforce our strong  relationship with the Bulgarian  Ministry
of Defense."




[LOGO OF ELBIT SYSTEMS LTD.]

ABOUT ELBIT SYSTEMS
-------------------

Elbit Systems Ltd. is an international  defense electronics company engaged in a
wide range of  defense-related  programs  throughout the world,  in the areas of
aerospace, land and naval systems, command, control, communications,  computers,
intelligence,  surveillance and reconnaissance ("C4ISR"), advanced electro-optic
and space  technologies.  The  company  focuses  on the  upgrading  of  existing
military  platforms and  developing  new  technologies  for defense and homeland
security applications.

CONTACTS
--------

COMPANY CONTACT                                         IR CONTACTS
Ilan Pacholder, Corporate Secretary and VP              Ehud Helft/Kenny Green
   Finance & Capital Markets
  ELBIT SYSTEMS LTD.                                    GK INTERNATIONAL
Tel:  972-4  831-6632                                   Tel: 1-866-704-6710
Fax: 972-4  831- 6659                                   Fax: 972-3-607-4711
pacholder@elbit.co.il                                   ehud@gk-biz.com
                                                        kenny@gk-biz.com


STATEMENTS   IN  THIS  PRESS  RELEASE   WHICH  ARE  NOT   HISTORICAL   DATA  ARE
FORWARD-LOOKING  STATEMENTS WHICH INVOLVE KNOWN AND UNKNOWN RISKS, UNCERTAINTIES
OR OTHER  FACTORS  NOT  UNDER THE  COMPANY'S  CONTROL,  WHICH  MAY CAUSE  ACTUAL
RESULTS,  PERFORMANCE OR ACHIEVEMENTS OF THE COMPANY TO BE MATERIALLY  DIFFERENT
FROM  THE  RESULTS,   PERFORMANCE  OR  OTHER   EXPECTATIONS   IMPLIED  BY  THESE
FORWARD-LOOKING STATEMENTS. THESE FACTORS INCLUDE, BUT ARE NOT LIMITED TO, THOSE
DETAILED IN THE  COMPANY'S  PERIODIC  FILINGS WITH THE  SECURITIES  AND EXCHANGE
COMMISSION