U.S. $800,000,000 CREDIT AGREEMENT Dated as of December 17, 2003 Among INTELSAT, LTD., as Borrower THE LENDERS NAMED HEREIN CITIGROUP GLOBAL MARKETS, INC. BNP PARIBAS MORGAN STANLEY SENIOR FUNDING, INC., as Lead Arrangers and Bookrunners BNP PARIBAS...